I’m confused, when has “everything” been a bazaar, and when did that cease to be?

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