Bad microphone when calling

My call sound (microphone) has been acting up since the last update.

Quite often, when I call people, they will tell me that the microphone sounds really bad. I can hear them just fine but they can barely understand what I am saying.

It is fixed when I restart the device, but the issue will return later.

No clue yet when it starts, or if its only in calls or also in audio recordings / videos(I restarted the phone immediately, because well, i was trying to have a call).

Is there anyone else that encountered the same issue?