I was looking for the best google camera for Moto Z so far. I checked many of the moded gcam applications and I ended up to gcam_pixel3mod_1.1_build.6.1.013. When I get older to the forum it will be allowed to me to post some photos from the new modes. 
So far I have tried:
- HDR+ enhanced works pefrectly (both cameras)
- Portrait mode works pefrectly (both cameras)
- Night Sight works nicely but a green screen is appeared (both cameras)
- Lens mode works perfectly
- Panorama mode works perfectly
Doesn't work
- Photo booth
- Slow motion
- Motion mode (both cameras)
- Front flash (but the screen goes white when the flash mode is on)
Edit:
New version (6.1.021) without green screen in night mode and the photo booth mode works as well! Thanks welder73 for the recommendation!
gcam_pixel3mod_1.1_build.6.1.013.apk : https://forum.xda-developers.com/devdb/project/dl/?id=30804
GCam_Pixel3Mod_1.3_build.6.1.021.apk : https://www.celsoazevedo.com/files/android/google-camera/f/GCam_Pixel3Mod_1.3_build.6.1.021.apk
So far I have tried:
- HDR+ enhanced works pefrectly (both cameras)
- Portrait mode works pefrectly (both cameras)
- Night Sight works nicely but a green screen is appeared (both cameras)
- Lens mode works perfectly
- Panorama mode works perfectly
Doesn't work
- Photo booth
- Slow motion
- Motion mode (both cameras)
- Front flash (but the screen goes white when the flash mode is on)
Edit:
New version (6.1.021) without green screen in night mode and the photo booth mode works as well! Thanks welder73 for the recommendation!
gcam_pixel3mod_1.1_build.6.1.013.apk : https://forum.xda-developers.com/devdb/project/dl/?id=30804
GCam_Pixel3Mod_1.3_build.6.1.021.apk : https://www.celsoazevedo.com/files/android/google-camera/f/GCam_Pixel3Mod_1.3_build.6.1.021.apk
Last edited: