I am currently using Immich to host my images of my family. Maybe this community can give me some insights of the features and the future of both products, and how you use them. It seems like the comparision chart in LibrePhotos is outdated. Thanks in advance :)
Immich has the companion app and handles auto-backup of your photos from your phone, it’s basically a direct replacement for Google Photos.
LibrePhotos is more a photo gallery, it shows photos from your file system, and doesn’t have a companion app.
Both do face recognition and have multi user support.