I have very similar questions as in this thread: Is it possible to solder the internal microphones away?
However I would like to physically remove / deactivate both microphones from the Fairphone 3, not 2. I also wanted to know, whether I would really need a heat gun / soldering iron.
This teardown seems to have the most detailed pictures regarding the inside of the phone: Fairphone 3 Teardown - iFixit
The top and bottom modules contain each one microphone. From the pictures alone, I cannot tell which components exactly are the microphones and how they are fixated. But I really am no expert, hence why I would prefer a solution without soldering iron etc. I do not care, whether the microphones survive the procedure
I am aware that there are the Pinephone and the Librephone with dedicated hardware switches, but from what I have read those are aimed at early adopters.