I have very mixed feelings on secret checks. One the one hand, they make a lot of sense, they seem like they really help roleplay and being in character, and they generate suspense and uncertainty.
On the other hand, I like rolling my pretty math rocks. I'm a minor dice goblin, and my expensive RNGs demand to be rolled!
Which is fine, I'm the GM at my table, but if I were on the other side of the screen, I think it'd drive me a little crazy.
I also know that they're a controversial topic more generally, and some players have really, really strong negative reactions to them.
So, how do you feel? Does your table use them? If not, why not? If so, how do they feel? Do you have anyone at the table with very strong feelings about them? If so, how have they articulated those feelings?
...inverted rolls (modifier = active DC-12) for passive checks (DC = ability modifier+10) are mathematically identical and can be rolled behind your screen all day long, with a single d20 roll serving everyone in the group to boot, so there's no dogpiling...