The Megalopolis in my head was one hundred billion times better than what FFC made.

Agreed. I have a VPS exit node for 4$/month, took an hour to set up, never once come within a mile of hitting my bandwidth cap on it.

The clients run on everything.

I am in school, and make heavy use of Teams and Office, and do just fine in Linux! 365 on the web, Libre Office, and Teams in a Flatpak. My instructors can’t wrap their heads around it. I’m the only one in my program! (IT, no less.)