It's got the same issue as tabletop simulator in that it's using the physics engine to sim everything. This would work well except you're using a mouse to interact with the game pieces and this feels clunky and you end up hitting other game pieces. This needs a way to set it so game pieces can set the collision group they belong to. That way for chess you can just move the chess piece without knocking over everything.

Good news is it's open source and Godot based so it shouldn't be hard to add this to the codebase.