OneDrive ceased to be a good backup alternative when they stripped GPS from all my photos 1-2 years ago. Unlike Google, there's no way to recover original files. They simply destroyed them.
This is scary. Isn't OneDrive supposed to keep files bit-identical? Or were you using their iOS/Android apps to back up photos, and some bug caused the photos to be backed up without their metadata?
Their mobile app is now stripping GPS on upload while files uploaded from desktop are unaffected.
However the files I already had uploaded going back to 2017 were stripped. No idea if this was done server side or by the mobile client but the end effect is the same.
Unlike Google, Microsoft doesn't bother documenting this policy.