It’s convenient. Can’t hurt to get used to it, for sure, in that it’s useful to not have to go through dependency hell installing things sometimes. It’s based on kernel features I don’t see Linus pulling out, so I think you’ll only see it more.
As someone who runs nix-only at home, I mostly use its underlying tech in the form of snaps/flatpaks, though. I use docker itself at work constantly, but at home, snaps/flatpaks tend to do the “minimize thinking about dependencies and building” bit but in a workflow more convenient for desktop applications.
My first character was a “muppet-born” named Ché-Elmo, who interacted with the group over video chat directly (a hand-puppet Elmo with a red star cap was all they saw and heard), and was a Warlock who had made a pact with the being Carl Marx in exchange for power. His tome of power was Das Kapital, which I’d have him leaf through while we played.
He went missing a few years ago; it’s my belief that he’s out there now in some other dimension still sticking it to every merchant he encounters.