Currently I’m using SGCam (SGCAM_8.5.300.XX.10_STABLE_V24_SNAPCAM_PACKAGE.apk), it works well out of the box though not perfect. I haven’t been using it for videos as I prefer OpenCamera (the built in /e/OS camera app) for that, so can’t talk about sound quality.
SGCam has a custom config for the Motorola Edge 50, which supposedly has the same sensor as this phone, so theoretically that would suit the FP6 better, but in reality while it does change some things, it is not better. It, for example, unlocks higher resolution photos, but the quality degrades significantly.
Likely the way would be to create a custom config for the FP6 based on the Edge 50 and the other info available.
The /e/OS camera shows this config:
Summary
Camera v1.53.1
Code: 90
Package: foundation.e.camera
Android API version: 35
Device manufacturer: Fairphone
Device model: Fairphone 6
Display size: 1116x2302
Display metrics: 1116x2302
Current camera ID: 0
No. of cameras: 6
Multi-camera?: true
Camera API: Camera2 (Android L)
Camera orientation: 90
Photo mode: Standard
Min zoom factor: 1.0
Max zoom factor: 1.0
Preview resolutions: 1920x1080, 1920x1012, 1440x1080, 1280x960, 1080x1080, 1280x768, 1280x720, 1024x768, 1024x738, 800x600, 864x480, 800x480, 720x480, 640x480, 640x360, 352x288, 320x240, 240x320, 176x144
Preview resolution: 1920x1080
Photo resolutions: 4096x3072, 4032x3024, 4096x2304, 3072x3072, 4000x2250, 2976x2976, 4096x2160, 3840x2160, 3280x2460, 3264x2448, 3200x2400, 3104x2336, 3072x2304, 3264x1836, 3072x1728, 2304x2304, 2592x1944, 2688x1512, 2560x1440, 2048x1536, 1920x1440, 2048x1152, 1920x1080, 1920x1012, 1600x1200, 1536x1152, 1440x1080, 1152x1152, 1280x960, 1080x1080, 1280x768, 1280x720, 720x1280, 1024x768, 1024x738, 800x600, 864x480, 800x480, 720x480, 640x480, 640x360, 352x288, 320x240, 240x320, 176x144
Photo resolution: 4096x3072
Video qualities: 1_r4096x2160, 1, 6_r3264x1836, 6_r3072x1728, 6_r2592x1944, 6_r2688x1512, 6_r2560x1440, 6_r2048x1536, 6_r1920x1440, 6_r2048x1152, 6, 5_r1920x1012, 5_r1600x1200, 5_r1536x1152, 5_r1440x1080, 5_r1152x1152, 5_r1280x960, 5_r1080x1080, 5_r1280x768, 5, 5_r720x1280, 4_r1024x768, 4_r1024x738, 4_r800x600, 4_r864x480, 4_r800x480, 4, 3_r640x480, 3_r640x360, 3, 7, 7_r240x320, 2
Video resolutions: 4096x2160, 3840x2160, 3264x1836, 3072x1728, 2592x1944, 2688x1512, 2560x1440, 2048x1536, 1920x1440, 2048x1152, 1920x1080, 1920x1012, 1600x1200, 1536x1152, 1440x1080, 1152x1152, 1280x960, 1080x1080, 1280x768, 1280x720, 720x1280, 1024x768, 1024x738, 800x600, 864x480, 800x480, 720x480, 640x480, 640x360, 352x288, 320x240, 240x320, 176x144
Video quality: 5
Video frame width: 1280
Video frame height: 720
Video bit rate: 2000000
Video frame rate: 30
Video capture rate: 30.0
Video high speed: false
Video capture rate factor: 1.0
Auto-level?: Available
Auto-level enabled?: false
Face detection?: Available
RAW?: Available
HDR?: Available
Panorama?: Available
Gyro sensors?: Available
Expo?: Available
Expo compensation?: Available
Exposure compensation range: -12 to 12
Manual ISO?: Available
ISO range: 100 to 6400
Manual exposure?: Available
Exposure range: 47180 to 10500000000
Manual WB?: Available
WB temperature: 1000 to 15000
Optical stabilization?: Not available
Optical stabilization enabled?: true
Video stabilization?: Not available
Video stabilization enabled?: false
Tonemap curve?: Available
Tonemap max curve points: 64
Can disable shutter sound?: Available
Camera view angle: 72.46323 , 54.829765
Flash modes: flash_off, flash_auto, flash_on, flash_torch
Focus modes: focus_mode_auto, focus_mode_macro, focus_mode_locked, focus_mode_infinity, focus_mode_manual2, focus_mode_continuous_picture, focus_mode_continuous_video
Color effects: None
Scene modes: auto, action, portrait, landscape, night, night-portrait, theatre, beach, snow, sunset, fireworks, sports, party, candlelight
White balances: auto, manual, incandescent, fluorescent, warm-fluorescent, daylight, cloudy-daylight, twilight, shade
Magnetic accuracy?: -1
Using SAF?: false
Save Location: Camera
Save Location SAF:
Parameters: None