Here's a guide that might also help: https://github.com/Start9Labs/electrs-startos/blob/master/docs/integrations/blockstreamgreen/guide.md
Discussion
What I noticed with the guide is it left the :t on the end. Does that need to stay? I'm about to try it with that.
Didn't work with the :t or without. I guess I'll try another wallet.
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 Obviously the docs are out of date, now that there's a new UI, but you should be able to copy and paste the .onion.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.