I’m considering switching everything to Debian eventually, but there’s a couple dedicated repos that make using Fedora on my laptop much easier for now.
I’d recommend against that. Debian is fantastic for a server, but I think it leaves a lot to be desired as a workstation OS as compared to Fedora.
You can get it there/make it that way, but Fedora is just better from a user experience/convenience perspective out of the box.
It’s likely because they use it as the primary/unique identifier for the account, which is just dumb. It’s like they’ve never heard of a UUID/GUID before.