let btns = document.querySelectorAll("[data-testid]")
let unfollowBtns = Array.from(btns).filter(btn => {
    return btn.getAttribute('data-testid').includes('unfollow')
})

for (let i = 1; i <= unfollowBtns.length; i++) {
    setTimeout(() => {
        unfollowBtns[i-1].click()
        setTimeout(() => {
            document.querySelector("[data-testid='confirmationSheetConfirm']").click()
        }, 500);
    }, 1000 * i);
}

Maybe Im not aware how things work in Javascript client side. If I try, at the end of the loop, to include something like:

window.scrollTo(0, document.body.scrollHeight);

and insert everything inside another loop, everything appears to happen at the same time.

Any suggestions? Thanks.