I used subversion for 10 years and don’t ever recall a problem when it was offline but the killed feature of GitHub - distributed source control - proved too complex For the majority of development teams. Instead there’s a “main” which people fork, add a feature, then merge and delete the fork.
I came here to say precisely that. I was on svn before git was a thing, and I've never moved off it for any projects where I get to decide such things.
To a first approximation, one could say that distributed version control is a problem nobody ever had, and nobody ever intends to have. (GitHub is the world's centralized monorepo.)
Yet, distributed version control is the majority of the reason why git's mental model is so overcomplicated.
