This is like app game rewards. Like “Select Bonus Box” and it gives you 3-4 options. As far as randomized, it likely isnt completely random(or predetermined. I imagine the apps don’t generate whats behind each one until its selected) , but I typically select the same box on each option because the odds are the same regardless.
Monty Hall style, always switch, even if that took me 10 years to finally understand.