Typing/locking sound gets louder while typing

Hello Apple community,

I have an "issue" which bothers me since I got my iPhone 11. When I'm typing the clicking sound gets louder which causes the locking sound to get louder as well. After couple of minutes I unlock my phone and start typing - it's less loud but while typing, it gets louder and louder. There's no volume bar when it happens.

I turned off "attention mode" in FaceID settings and this helped me to wake up in the morning so the alarm alert volume doesn't go down when I'm lookingI look on the iPhone.

When I have "change alert volume with volume buttons" turned on, the volume bar in Settings app does change on its own sometimes. Without this option enabled, it stays in the same place.

Can you tell me if there's some kind of option that makes clicking/locking sounds louder? It's really annyoing when I'm typing quietly and then it gets a little bit louder with each pressed key. It clearly looks like it has something to do with iOS itself.

Already performed a reboot and "hard restart" to clear caches etc.

I cannot perform a factory reset because I have no time to configure everything from the beginning so any other solution will be very very appreciated.