Stealth is one of those subjects that comes up here over and over again, see eg
https://forums.larian.com/ubbthreads.php?ubb=showflat&Number=844163 for a relatively recent discussion, but there have been many more.
It possibly even warrants a mega thread, and if there’s popular demand I’d have a go collecting some of the stealth feedback into one place.
I’ve said my own piece on stealth more than once, I know, but in summary I think stealth at the moment is a combination of overpowered (hide as a bonus action), broken (multiple issues with triggering combat from stealth) and somewhere between the two (restricted sight cones).
