***Note***: You will need to uninstall any previous versions as the signing key changed.

Lots of fixes for this version to work perfectly.
It is one of my best and most stable version for all OnePlus from OP3 to OP8Pro, ZF6, N7Pro, S20U SD.
This version has been tested with the stock rom or Lineageos
* can be used on other devices, but does not benefit from optimization
This version has a huge changelog but already mentioned on other mods.

What works in GCam_5.200604.2138build-7.3.021 :

- HDR+ OFF/ON/Enhanced : it's OK
- Instantaneous HDR+ :it's OK
--- Note: instantaneous HDR+ is an HDR between ZSL (HDR+on) and HDR+Enh
- 4:3/16:9 : it's OK
- Motion photos : it's OK
--- Note: Google Photos crashes with some pictures, sometimes videos are very short
- Timer : it's OK
- RAW : it's OK ( bug on oneplus 7 with RAW editors )
- Burst or quick video : it's OK
- Flash :
--- OFF/Auto/Forced : it's OK
--- Forced + HDR+OFF : it's OK
- Face retouching : does not work
- Portrait Mode :
--- Rear : it's OK
--- Front : it's OK
- Night sight :
--- Night : it's OK
--- Astro : it's OK
----- Astro Max Timer : AUTO/~30s/~60s/~120s
- Slow Motion :
--- 1/4 : Works on all devices
--- 1/8 : Works on less device
- Video :
--- Note: Setting not available on the FRONT camera
--- 1080P @ AUTO/24/30/60 FPS : it's OK
--- 4K @ AUTO/24/30/60 FPS : it's OK
- Google AWB : AUTO/OFF/ON
- Pixel Binning :
--- 12/48Mp : it's OK, for devices that can or with eszdman’s 48MP Fix Magisk Modules
- AUX Mode :
--- Works up to 5 lens + AUX Module
- LibPatcher :
--- is an advanced tool that enables the user to control specific parameters which directly affect the final output

for help:forum.xda-developers.com/apps/google-camera-mods/app-arnovas-google-camera-port-t3862448/page244

For Module : www.celsoazevedo.com/files/android/google-camera/f/changelog1195/