Hello community,
the only concern that I got so far by using the Fairphone 6 emerged when I tried to record a concert performance, or any place with loud music: any time I used the shipped Camera app, the recorded audio was heavily and irrecoverably distorted.

In an old page of the official forum, I have found the suggestion of using the OpenCamera app and using the unprocessed audio source option in the app Video Settings, as shown in the pic here below:

After a few tests, the audio recording is perfect.

I wanted to share this tip with the community, as it baffled me for a while.