PinoLY They simply don’t care about the cameras - it works for most people I guess taking “artsy” photos
The 3a suffers so many issues with the stock camera - poor focus, HDR crush, and shutter lag from the slow processing (I’ve measured this to be around 0.2 to 0.3 seconds). The shutter lag ruins a lot of photos as faces/body gestures shift after processing or become blurry
GCam as you say isn’t a solution - usually features are broken or can crash a lot.
BTW you probably didn’t use the right version - again another issue using a hacky GCam that most versions either don’t work or the quality tanks. If you can find a good one it is much better than stock