“One is none, two is one” when it comes to backups. If you have a service like Microsoft 365, OneDrive comes with 1TB of data and can backup photos. You can also use Google and Amazon. There’s even option like Nextcloud and Owncloud for a self hosted solution.
I do have back up of the photos and videos, but the rest of the phone can only be backed up using iCloud or Finder/iTunes on Windows. Both methods are actually impossible to test without a spare phone.