Gothic is already a case of having a fairly complex day/night cycle, in general.
Especially since NPCs in all Piranha Bytes games don't "teleport around". When you follow them they actually walk every step of their journey from one place to the other, even when they move half world map away.
I wouldn't even dream to ask anything of that complexity in BG3.
Hell, for a start I wouldn't ask or expect anything at all. At the most basic level I'd be fine even with "signpost NPCs" staying where they are day and night but STILL have passing hours, light/dark cycle, tiredness/fatigue/exhaustion and so on...
Everything on top of this absolutely bare-boned implementation would be welcomed but not expected, let alone "demanded".
