The solution provided by @RyanDejaegher (see code below) works great in Squarespace 7.1 on desktop, but fails on mobile for me. 🙁
<script>
(function()
{window.addEventListener("load", function () {
var tours = document.querySelector('[href="FOLDER SLUG COPIED FROM STEP 1"]');
tours.addEventListener("click", function () {
window.location = "PAGE SLUG OR FULL URL";
});
})}
)();
</script>