Thank you for the instructions, I disabled PipeWire with the given command.
I had the following windows in alsamixer:
These are all my displayed devices:
default 0:
default 1:
Performing the Mic boost does not really change anything in my experience. The capture level was already on 100%. The USB device is a crappy webcam Mic which I do not use for anything.
PulseAudio settings:
