Serious question:
What bennefit woult then staying in stealth on start of the combat have?
I mean, yes unlimmited movement is OP as f*** ... especialy since you still can use all your actions and bonus actions, if you play them in corect order ...
But when your sneaking character would simply be forced into Turn-based timezone ... what exactly would you get from that sneaking, or to put it in different words, what reason would be there so sneak at all? O_o
I would be all in for all characters rolling initiative, when combat starts ... its pretty anoying when another character joins the fight and must skip whole round since he rolled good innitiative, but sadly the others was allready on their turn. :-/
But characters that was "not yet discovered" should at least be able to move faster (aka. more far) to the position. Otherwise i simply dont see any reason for using stealth in the first place. :-/
Advantage
That's how it works in Solasta : if your party is hidden (or some members) and a combat start because one of them is spotted, the other characters are in combats but they stay hidden.
The ennemy don't see them and don't attack them but you have an advantage on their attack roll.
The ennemy can see you if he's moving close to you (usually when he tries to reach the spotted characters)
When you attack someone with a hidden character a skill check is made to determine if you're spotted or not. If you are, every ennemies see you but if you're not, you keep your advantage for the next turn... until the next skill check or until an ennemy move close to you.
It works pretty well IMO and it's interresting because it's really rewardfull.
Of course the appeal of "advantage" through hide (or anything else) is really low in BG3 because of backstab and highground.
