[tmtvl]

The real differences are things that maintainers do. Like how... OBS I think? ...had a bunch of people come in with issues that only existed in the Debian version. Debian software has a bunch of patches, Arch software has far fewer and sticks closer to upstream, other distros will vary. Derivatives also made nonfree easier to set up, which was especially important when MP3 was still encumbered. Nowadays Debian still has the reputation of having old, outdated versions of software, which is going to be hard to shake, especially considering stability is meant to be their main draw.