I did the same but opted to install NixOS as primary OS on my work laptop immediately (I came from EndeavourOS). And the experience was actually very smooth. You can install a KDE or Gnome desktop from an iso graphical installer, add your packages to configuration.nix and start being productive.

Yes this is the start of a very steep learning curve but I have been taking it very slow and it has been working for me since day 1. I think it’s pretty brilliant that the entry level is so low.

Experimentation is cheap (just use grub to boot into your previous env if you mess up, try packages with nix-shell), and I have had great help in the Jupiter Broadcasting Nixnerds Matrix channel. Some great people are in there.