Now official, from /e/OS v. 2.2 release notes:
Fairphone 4
- You’ll now be able to enjoy Fairphone’s default camera app to take pictures if you want to, you just need to enable one setting in
Settings>Apps>Fairphone Cameraand reboot your phone. Warning though, for now the video mode does not work, it’ll be fixed in a next release.- The 48MP/50MPx mode has been added into /e/OS Camera for this phone
Fairphone 5
- The 48MP/50MPx mode has been added into /e/OS Camera for this phone
EDIT (25 July 2024 at 16:30 Amsterdam time): Specified required settings