of course not literally 'everything', but as someone that grew up in a post-git world, with github as the 'default', to me projects that don't accept (or expect!) outside contributions have been the exception; definitely aware of notable examples (sqlite? some web servers, a few internal-libraries-that-outsiders-use?) but very much used to the bazaar

i think the claim is that more projects are locking up contribution paths ~currently

Umm, I missed a negation there, sorry. I meant that the newest generation has only seen a world where there's a giant OSS ecosystem and the bazaar style is the norm for all of your tool and library needs.