> This is one of the reasons you see Linux everywhere, and *BSD, rarely.
I doubt it's a large reason. I'd put more weight on eg Linus being a great project lead and he happens to work on Linux. And a lot of other historical contingencies.
BSD does a few things right, hence it's used by Netflix (who share back some of their work), userland of macOS (because Apple don't like GPL, I assume), PS4 and PS5 (IDK if anything seeps back upstream from there).
I doubt it's a large reason. I'd put more weight on eg Linus being a great project lead and he happens to work on Linux. And a lot of other historical contingencies.