reminder if you're using some sort of degoogled ROM or even LineageOS to check if your seedvault backups work because i just did a brand new one with a new code and EVERYTHING and it just failed to restore.
like i used to see the grapheneOS account manager crash out over seedvault a bunch of times and think "yeah its rough but it works when things haven't been fucked with" No. It just Doesn't Work most times.