I love my P20Pro, but 1 thing realy gets me.
On approx 75% of calls if I hold my phne in my left hand at approx 45°(ear to mouth) my caller says ‘are you under water?’ I change the phone to my right hand at approx 45°(ear to mouth) and my caller says great I can hear you now, no problems.
There is no lint/dust in the mic hole.
I have used the voice recorder to test holding the phone in the left and right hand mic operation… the recordings were the same!!!