It's very obvious that they've unleashed a bunch of very junior developers on front end, it's I'm surprised that it still works.

The previous AJAXed implementation had its haters, but at least it was very close to bare HTML on HTTP.

Sometimes things already don't work. For example recently, I used Firefox and couldn't create an organization. It would just hang, when I clicked the green button to create it. Not sure how they could mess that one up, but when I used Chromium, it worked. It should be as simple as sending a form, but somehow they f'ed that up.

Maybe they have given most of the development over to AI?

Don't forget many of those very junior developers they've unleashed on the front end is GitHub Copilot. Vibe coding is the new GitHub mandate, because they are serious about dogfooding.