I wonder if this ties into why I'm baffled at the increasing trend of adding fake delays (f/ex "view transitions"). It's maddening to me. It's generally not a masking/performance delay either; I've recompiled a number of android apps for example to remove these sorts of things, and some actions that took an entire second to complete previously happen instantly after modification.
Have you tried disabling animations in the System Settings? Some apps respond to that.
Ohhhh trust me, I have, assuming you mean "Disable animations". The three duration scale developer settings too. Thank you for suggesting it, though, just in case.
Some apps do respect it, but sometimes it's hardcoded, and OS settings don't seem to override it. Even the OS doesn't respect it in some cases, but I think it used to. Flutter apps? Forget about it.