Do you have the same issue?
I wanted to give NixOS a try, because I really like the idea of my system being unbreakable, since I can just return to the last working version. After installing NixOS on my laptop, everything was great, until I wanted to connect my Headphones via Bluetooth, which wasn't possible for some reason. After countless hours of chatGPT prompts I was able to turn on Bluetooth, but that only worked until I shut down my laptop. I think it could be my Wifi Card (MT7925), but NixOS is the only distro, I have tried on my computer, that has issues with that card. Anyways, until that issue is resolved, I am sadly going back to Arch.