Thanks a lot. I will give it a try. By the way, are you also using the NUR? Do you maybe know if I can configure the nix.registry to allow using NUR packages using nix shell as well?

Are there any tradeoffs I need to accept to use this?

Are flatpaks really that bad? Why would they even require more resources?

Sounds like my story. I think I started with Ubuntu, but installed mints cinnamon Desktop environment later on.

I suppose this made you work in it later on as well?