f5997 - 6mo
Just went through the process on Desktop, without the :t, and it seems fine. I can connect to my Electrs and view TXs. Obviously the docs are out of date, now that there's a new UI, but you should be able to copy and paste the .onion. What I can't see on the new interface is anything that shows whether Tor successfully completed bootstrapping. Maybe you're having trouble there.
