Yeah, working with Godot 4 was a pain in the ass in a way or another. Had the same thought about tilemaps, there are a lot of parameters to simply set a tile, somehow they made it even worst. Cool idea for your game, the theme is different and that's valuable.
Viewing post in Day 4 and 5 - Not tracking to requirements comments
Thanks. It's the unusual type of emergent gameplay that I hope will result that interests me; the theme is just a way to make a game about manipulating NPCs.
Days later, working on better mapgen, we're still struggling to get Godot 4's new constraint-propagation autotiler to produce desired results. It seems a bit unreliable when it has limited tile variants to work with and there are mysterious tricks to its use.