GCam 6.1.021 v1.7.1907 is compatible with most of the devices which supports Camera 2apiLINK: https://www.celsoazevedo.com/files/android/google-camera/dev-arnova8G2/Compatibility:- The camera2 api needs to be enabled;- Most versions only work on Snap...

If you want to use gcam on Samsung Galaxy a7 use gcam version 5.1 . This version will definitely work except night sight & portrait mode

Linkhttps://www.thecustomdroid.com/download-samsung-galaxy-google-camera-port/

As per Samsung service they provide 2 updates. So we can say that A7 will get android 10 with UI 2 in 2020 Q1