I am only a solo user that tried similar recovery.

There are several jobs in the admin section, one of them is “migrate the storage template” or something like this. I think that thing might do what you want. I would check that it is set properly depending on what you were using previously and rerun in. https://immich.app/docs/administration/storage-template/

I also wanted to mention that normally Immich dumps its own db into a file backup file somewhere. I forgot where. Check the database dump backup cron job in the settings.

Relevant xkcd https://xkcd.com/865/

They have a years long running PR to add SSO that just doesn’t get merged in for some reason…

I do. On my imaginary scale around 4 out of 10. So far the mess looks to me like it was voted in.