I am playing around with Fedora Silverblue and openSUSE Aeon and I really like the painless updates.
Still, my daily driver for some years now is Debian, and I have a decent setup via Ansible - everything just works for me.
My question is mostly to long term Linux users, which use Linux in a professional context and jumped from a distribution like Fedora, Ubuntu, openSUSE or Debian to NixOS, Silverblue, Aeon etc.
What is your experience? How did your workflows change on your immutable Linux distribution? Did you try immutable and went back to a more traditional distribution - why? How long are you running the immutable distribution and what issues and perks did you run into?
NixOS is hard to explain.
I also did not get it at first, but got into a 101 session at cfgmgmtcamp last year and then it clicked.
I would suggest looking at YouTube videos like this one and try to understand what NixOS really is.
It is a pity really that it is not more approachable, the project would have more success if it is somehow easier to explain to others that are new to it :).