I found everything I need in NixOS, Arch and in general community-based true distro (true means not a recompilation of another distro). While I often found old software in Ubuntu and Fedora, for instance.

This system scale far more than proprietary one, to the point that after decades proprietary OS choose "repo model" instead of single independent installer (because yes, Play store, Apple Store, Samsung Store, Windows store etc are a limited and limiting repo-model software distribution).

People that say it doesn't scale are IMO two kind: one that produce software no one is really interested to package or people who struggle to being part of a community or do not want being part at all because they want proprietary software...

Another important thing: having an integrated, well functional system is FAR more important than having the latest build from a CI. Software freshness is not a problem to a point that in operation we never trust an unpatched release on anything. Freshness is normally required by crapware devs who produce normally monsters that need a continuous stream of "fixes", like most commercial business softwares so they can't really keep up with a traditional model.