Another day another problem. Today I have had a call over Teams (teams snap) and I was able to hear them, but they where not been able to hear me. Mic was turned on (I see led light when it is on) on laptop. We tried several times to establish call, but always the same they could not hear me.
Then I have remembered I have installed Teams snap yesterday. I uninstalled Teams snap and installed teams-for-linux snap and now everything is working fine, they can hear what I am saying.