FP6 - Camera Issues / Features lost

After installing e/os 3.0.2-a15 on the Fairphone 6, the following features are missing in the Camera app:

• REQ1: Digital Zoom (2x)
• REQ2: Taking Pictures in High Resolution (50 MPixels)
• REQ3: Volume and sound of video recordings is very soft, even on 200 percent volume sound in the video is barely noticeable. This runs the video camera fairly unusable.
• REQ4: Option for FP6 to use the official Fairphone Camera app that is available in their ROM, as this is available for FP4/5 users on /e/OS.
• REQ5: Remove the grey horizontal líne, which is added by NR (Noise reduction).