Back to CSS Checkboxes Strikethrough Checkbox Pure CSS
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.cb-strike {
  display: inline-flex; align-items: center;
  gap: 10px; cursor: pointer; user-select: none;
}
.cb-strike__input { display: none; }
.cb-strike__box {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.05);
  display: flex; align-items: center;
  justify-content: center; flex-shrink: 0;
  color: transparent; overflow: hidden;
  transition: background .25s, border-color .25s,
              color .25s;
}
.cb-strike__box svg {
  transform: scale(0);
  transition: transform .3s cubic-bezier(.34,1.56,.64,1);
}
.cb-strike__text {
  position: relative; transition: color .3s;
  font-size: 14px;
}
.cb-strike__text::after {
  content: ""; position: absolute;
  left: 0; top: 50%; width: 0; height: 1.5px;
  background: #7c6cff;
  transition: width .35s cubic-bezier(.23,1,.32,1);
}
.cb-strike__input:checked + .cb-strike__box {
  background: #7c6cff; border-color: #7c6cff;
  color: #fff;
}
.cb-strike__input:checked + .cb-strike__box svg {
  transform: scale(1);
}
.cb-strike__input:checked ~ .cb-strike__text {
  color: rgba(255, 255, 255, 0.55);
}
.cb-strike__input:checked ~ .cb-strike__text::after {
  width: 100%;
}
<label class="cb-strike">
  <input class="cb-strike__input" type="checkbox" checked />
  <span class="cb-strike__box">
    <svg width="12" height="9" viewBox="0 0 14 11" fill="none">
      <polyline
        points="1,5.5 5,9.5 13,1"
        stroke="white"
        stroke-width="2.2"
        stroke-linecap="round"
        stroke-linejoin="round"
      />
    </svg>
  </span>
  <span class="cb-strike__text">Strikethrough label</span>
</label>
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