In Webflow, I've added a Code element at the bottom of the FAQ that does this after 3 seconds. It's written in a way that works even if there are multiple FAQ components on the page.
<script>
setTimeout(() => {
document.querySelectorAll(".faq-wrapper").forEach(wrapper => {
const firstItem = wrapper.querySelector(".faq-item:first-of-type .faq-question-text");
if (firstItem && !firstItem.dataset.clicked) {
firstItem.click();
firstItem.dataset.clicked = "true";
}
});
}, 3000);
</script>Hope this helps.