Hello,
my laptop has a very quiet microphone so I have a question how can I increase the maximum input volume? I mean how to increase the microphone volume above 100% ideally to 150%.
On KDE Plasma there is a button for this (like on the picture below) but I can't find a solution for my Budgie environment.

I would be very grateful for any advice.
I am using Solus Budgie 4.3 with the latest updates and Budgie in the version 10.7.1.

Maybe with Pulse Effects ?

$ eopkg sr pulseeffects
pulseeffects         - PulseAudio equalizer

Look at alsamixer in a terminal.
F6 to select your soundcard, it will show you all volume. Select and adjust with the arrows keys.