Hm... going into backup settings afterwards it asks me to save the recovery phrase, there is no option to enter my own and recover from earlier backup either...
I understand people have to do this once, but it is quite annoying. I was already mentally prepared that I don't have root to just restore everything quickly and easily and SeedVault backed up without errors only tiny fraction of stuff for me, but there are even more hoops to go through apparently.
Consider this as a feature request/new user feedback.