Debian: I can help friends get going on Ubuntu with the same skills I set up servers on any cloud service I might ever want to use.
If I wanted to do something less mainline, I'd probably be looking at NetBSD instead of arch if coming from macOS.
That said, Terminal.app in Tahoe is one of the few apps that got meaningful under-the-hood updates. If I was a macOS terminal enthusiast, Tahoe might not be all bad news.
