Maybe Bluesky has "won"

bluesky is reselling domains? Not sure that's still the case. Never saw anything about buying a new one when I was going thru the settings to change a handle.

That being said, the change handle to domain process is quite slick with very smooth DNS record based transfer done in a minute.

They do. Since July. https://bsky.social/about/blog/7-05-2023-namecheap

July 2023. Like I said, don't think that's the case anymore. It's not in the process of handle changing. They simply suggest buying your own domain from any registrar now.