Keep in mind that at this point, GCam 7 is still better from a stability and features point of view.

Also, due to OnePlus blocking access to the extra cameras on Android 11, stay on Android 10 if you need to GCam to take pictures with the wide/macro cameras.

It seems that OnePlus is rolling out the stable Android 11 update for the Nord. Keep in mind that:

1. Access to the auxiliary cameras (macro, wide, etc) is harder on OxygenOS 11.
2. You need to use the "snapcam" package or only the main front/rear camera will work.
3. The front wide camera didn't work on the OxygenOS 11 betas due to the limitations introduced by OnePlus.

If GCam is very important for you, consider staying on Android 10 for now.

The current situation with GCam on the OnePlus Nord and OxygenOS 11 is the following:

1. You need to use the "snapcam" package of each apk (edit: apparently "eng" and "urnyx" also works).
2. If you use a different package, only the main back and front cameras work.
3. Stay on Android 10 or move to a custom ROM to access all cameras.

OxygenOS 10 (Android 10) or any custom ROM (Android 10 or 11) with any package name.

✅ Front main
✅ Front wide

✅ Rear main
✅ Rear wide
✅ Rear macro
❌ Rear depth

OxygenOS 11 + the "snapcam" package:

✅ Front main
❌ Front wide

✅ Rear main
✅ Rear wide
❌ Rear macro
❌ Rear depth

OxygenOS 11 + other packages:

✅ Front main
❌ Front wide

✅ Rear main
❌ Rear wide
❌ Rear macro
❌ Rear depth

Maximum resolution for the rear main camera is 12MP on all ROMs (Oxygen 10, 11, custom ROMs, etc).

If you're able, report a bug on OnePlus forums. Tell them that they are blocking access to the auxiliary cameras for all 3rd party camera apps:

https://forums.oneplus.com/feedback/