Recently took the leap to try it out and it’s surprisingly nice. Especially thanks to the automatic rollbacks, in case something breaks. Only took me a few years of getting nagged and learning about it, and multiple attempts at reading through the documentation.
But for a beginner? No way. NixOS has a serious documentation issue. Also the community structure is a big plus in Debian.
I guess OP never applied for a job outside of software engineering? Other people have their own chain of pointless assessment centers and interviews with everyone to get that sweet rejection at the end.