I got an invitation the other week and I'm using it for things that are fiddly to maintain a bridge with self hosted Synapse and Mautrix, which I also use. I was having a look at the phone app and just noticed that it's mostly reskinned Element. I'd be interested in hearing what their phase 2 is though and perhaps more how it's going to affect individuals.
Yep https://ubuntu-touch.io/ . Rolling out LTS 20.04 for their supported phones at the moment.