IS THERE a name for the phenomenon? You are about to tap / click when the UI changes underneath you. You can end up tapping the wrong thing! I call it bait and switch and I am not sure how to fix it.
It is the most infuriating thing when I'm in a hurry and know what to click. Windows itself doesn't do this much, but, do websites love it. I bet its called hydration or something, that causes the layout shift.