I am having exactly this issue at exactly this part of the game - on PS5 the game crashes at the end of the camera scene after the Iomedae/Nocticula choice in Drezen.
I have uploaded all the errors, the last time with a screenshot and video.
I managed to make it through Kingmaker even with all the crashes - and even got the platinum trophy - but those crashes were all random locations and this is consistently in the same place.
Loading an earlier autosave (as suggested here) and deleting extra saves (which helped in Kingmaker) both did nothing at all. I've been choosing the angel path and sticking with it, and I'm going to try another path next time, but if the game's bugs require me to restrict my choices, it's not really the full game.
EDIT: Switched to mythic hero to see if choices made a difference, and I figured it would be the least graphically intense choice. It made no difference whatever. Neither has loading earlier saves, skipping cutsce...