I have no opinion or comment on historic cases, what should be legal or if CD Projekt is my daddy or not. I didn’t even specifically refer to IP or copyright laws, so I don’t know why you started on that.

The current legal consensus (atleast in the West) is that paid mods are a commercial product and no longer a user “passion project” under fair use.

Yes, it’s essentially the same concept as a phone case, but laws seem to make a distinction for software vs physical products. Feel free to go into politics to change that.