This is likely via silent updates of Google's Play Services.
user
joined 5 months ago
You're mostly right -- those names sound like overkill. However do note I have been using Bitwarden's Name Generator (random noun + number) and I've evolved the scheme a bit ( it is now always 'user' and I keep adding numbers until the generated username is available ).
Negative, full-res photos with EXIF is not possible to access with rclone (due to Photos API limitations).