IP addresses
MAC addresses (physical devices, bluetooth devices in range)
Wifi access points
Cell tower access points
Browser cookies
Browsing history
Search history
Email (and its contents)
GPS paths traveled
Contacts
Apps installed, apps used, frequency of use
Hours inactive
Photos, videos
Just thinking about Google here as I don’t use meta products, but my phone is android…
There is also a snap version of immich, makes all the pain go away… at least, the snap version hasn’t had any breaking updates for me yet. It just keeps working.