Как сделать так, чтобы если хоть один из элементов активен, то появлялся объект, а если ни один не активен - исчезала

<div class="decades-checkbox-list">
    <div class="decades-checkbox-wrap">
        <ul class="decades-checkbox-col">
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-1">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-1">The 1930s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-2">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-2">The 1940s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-3">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-3">The 1950s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-4">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-4">The 1960s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-5">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-5">The 1970s</label>
            </li>
        </ul>
        <ul class="decades-checkbox-col">
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-6">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-6">The 1980s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-7">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-7">The 1990s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-8">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-8">The 2000s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-9">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-9">The 2010s</label>
            </li>
            <li class="decades-checkbox-item">
                <input class="decades-checkbox-input" type="checkbox" id="decadesCboxInput-10">
                <span class="decades-checkbox-span"></span>
                <label class="decades-checkbox-label" for="decadesCboxInput-10">The 2020s</label>
            </li>
        </ul>
    </div>

    <div class="skip-checkbox">
        <input class="skip-checkbox-input" id="decadesSkipCboxInput" type="checkbox">
        <label class="skip-checkbox-label" for="decadesSkipCboxInput">
            <svg class="skip-checkbox-svg" width="18px" height="18px" viewBox="0 0 18 18">
                <path
                        d="M1,9 L1,3.5 C1,2 2,1 3.5,1 L14.5,1 C16,1 17,2 17,3.5 L17,14.5 C17,16 16,17 14.5,17 L3.5,17 C2,17 1,16 1,14.5 L1,9 Z">
                </path>
                <polyline points="1 9 7 14 15 4"></polyline>
            </svg>
            <span class="skip-checkbox-span">The time doesn't really matter.</span>
        </label>
    </div>
</div>

<button class="submit-btn" id="submitBtn">
    <span class="arrow"></span>
</button>

body {
    text-align: center;
}

/* Decades Checkbox List */

.decades-checkbox-wrap,
.decades-checkbox-list {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.decades-checkbox-wrap {
    width: 100%;
}

.decades-checkbox-col {
    display: flex;
    flex-direction: column;
    padding: 0;
    margin: 0;
    list-style: none;
}

.decades-checkbox-item {
    margin: 15px 0;
    display: flex;
    position: relative;
}

.decades-checkbox-input {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    border: 0;
    clip: rect(0 0 0 0);
}

.decades-checkbox-input:checked + .decades-checkbox-span {
    border-color: #21ebff;
    box-shadow: 0 0 0 15px #21ebff inset;
}

.decades-checkbox-input:checked + .decades-checkbox-span::after {
    opacity: 1;
    transform: scale(1);
}

.decades-checkbox-label {
    padding-left: 50px;
    word-spacing: 3px;
    font-family: 'Marvel';
    font-size: 26px;
    color: #202020;
    cursor: pointer;
}

.decades-checkbox-span {
    width: 25px;
    height: 25px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 100px;
    background-color: #FFF;
    border: 3px solid #21ebff;
    box-shadow: 0px 0px 0px 0px #21ebff inset;
    transition: all 0.15s cubic-bezier(0, 1.05, 0.72, 1.07);
    cursor: pointer;
    position: absolute;
    z-index: -1;
}

.decades-checkbox-span::after {
    content: '';
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 4;
    position: absolute;
    transform: scale(0);
    background-size: 50%;
    background-image: url('https://s6.picofile.com/d/8392306668/bacc888c-bed7-41a9-bf24-f6ff0718f471/checkmark.svg');
    background-repeat: no-repeat;
    background-position: center;
    transition-delay: 0.2s !important;
    transition: all 0.25s cubic-bezier(0, 1.05, 0.72, 1.07);
}

.decades-skip-checkbox-input {
    display: none;
}

/* Skip chechbox */

.skip-checkbox {
    margin-top: 60px;
    position: relative;
    width: 100%;
    text-align: center;
}

.skip-checkbox-input {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    border: 0;
    clip: rect(0 0 0 0);
}

.skip-checkbox-label {
    cursor: pointer;
    position: relative;
    margin: auto;
    width: 18px;
    height: 18px;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
    transform: translate3d(0, 0, 0);
}

.skip-checkbox-label:before {
    content: "";
    position: absolute;
    top: -15px;
    left: -15px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #223254;
    opacity: 0;
    transition: opacity .2s ease;
}

.skip-checkbox-label:after {
    content: "";
    position: absolute;
    top: -15px;
    left: -15px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #223254;
    opacity: 0;
    transition: opacity .2s ease;
}

svg {
    position: relative;
    z-index: 1;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke: #C8CCD4;
    stroke-width: 1.5;
    transform: translate3d(0, 0, 0);
    transition: all .2s ease;
}

path {
    stroke-dasharray: 60;
    stroke-dashoffset: 0;
}

polyline {
    stroke-dasharray: 22;
    stroke-dashoffset: 66;
}

polyline:hover,
polyline:before polyline:after {
    opacity: 1;
}

svg {
    stroke: #21ebff;
}

.skip-checkbox-input:checked + .skip-checkbox-label svg {
    stroke: #21ebff;
}

.skip-checkbox-input:checked + .skip-checkbox-label path {
    stroke-dashoffset: 60;
    transition: all .3s linear;
}

.skip-checkbox-input:checked + .skip-checkbox-label polyline {
    stroke-dashoffset: 42;
    transition: all .2s linear;
    transition-delay: .15s;
}

.skip-checkbox-span {
    margin-left: 7px;
    -webkit-user-select: none;
    user-select: none;
    font-family: 'Marvel', sans-serif;
    font-size: 26px;
    color: #202020;
}

.disabled {
    opacity: 0.3;
}

.disabled {
    pointer-events: none;
}

/* Submit Btn */

.submit-btn {
    margin-top: 120px;
    width: 0;
    height: 52px;
    background: #fff;
    border: 3px solid #21ebff;
    box-sizing: border-box;
    border-radius: 30px;
    cursor: pointer;
    background: linear-gradient(to right, #21ebff 0%, #21ebff 50%, #ffffff 50%, #ffffff 100%);
    background-size: 200% 100%;
    background-position: 100% 0;
    transition: background-position 0.5s;
    transition: all 0.3s ease-in-out;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}

.submit-btn.show {
    pointer-events: auto;
    opacity: 1;
    width: 147px;
}

.submit-btn:hover {
    background-position: 0 0;
}

.arrow {
    display: inline-flex;
    position: relative;
    width: 0;
    height: 20px;
    cursor: pointer;
    margin-top: 5px;
}

.active {
    opacity: 1;
}

.arrow:before,
.arrow:after {
    display: inline-flex;
    position: absolute;
    content: '';
}

.arrow:before {
    top: 8px;
    right: -50px;
    width: 40px;
    height: 3px;
    background-color: #21ebff;
    transition: all 0.6s;
}

.arrow:after {
    width: 15px;
    height: 15px;
    top: 2px;
    right: -51px;
    border-top: 3px solid #21ebff;
    border-right: 3px solid #21ebff;
    transform: rotate(45deg);
    transition: all 0.5s;
}

.submit-btn:hover .arrow:before {
    background-color: #fff;
}

.submit-btn:hover .arrow:after {
    border-top: 3px solid #fff;
    border-right: 3px solid #fff;
}

document.addEventListener('DOMContentLoaded', function() {
    const checkboxLists = document.querySelector('.decades-checkbox-wrap');
    const decadesInputs = checkboxLists.querySelectorAll('.decades-checkbox-input');
    const skip = document.querySelector('.skip-checkbox');
    const skipCheckbox = skip.querySelector('.skip-checkbox-input');
    const submitBtn = document.querySelector('.submit-btn');

    checkboxLists.addEventListener('click', function(e) {
        for (let i = 0; i < decadesInputs.length; i++) {
            if(decadesInputs[i].checked) {
                skip.classList.add('disabled');
                submitBtn.classList.add('show');
                break;
            } else {
                skip.classList.remove('disabled');
                submitBtn.classList.remove('show');
            }
        }
    });

    skip.addEventListener('click', function(e) {
        if (skipCheckbox.checked) {
            checkboxLists.classList.add('disabled');
            submitBtn.classList.add('show');
        } else {
            checkboxLists.classList.remove('disabled');
            submitBtn.classList.remove('show');
        }
    });
});

Если я правильно понял)