Yeah, seems like Immich is kind if taking over. It really is an excellent one stop solution for automated multi-user backup. Ive been using it for a few months and its solid.
The other option that I really like is a combination of software: Nextcloud + Les Pas. Nextcloud is the server where images are stored in a flat folder system, and Les Pas is an android photo album app that organizes and manages the albums. Its super nice and has some really advanced organization features. Worth checking out if you want to use nextcloud as the storage server.