Keyboard connected via USB OTG writes wrong characters

Question

I have keyboard+mouse combo connected via USB A -> USB C reduction. Mouse works as expected, but keyboard writes wrong characters (it starts in second line see below).

I tried two different USB combos (from different manufacturer - Logi(tech), Yenkee) and both produce same result.

It's Asus stock Android 11, system language is English, SW keyboard is SwiftKey (QWERTZ, EN+CZ), also I use Bluetooth keyboard Logitech K840 which works as expected.

 `  1  2  3  4  5  6  7  8  9  0  -  = 

ˋ1234567890-=

 Q  W  E  R  T  Y  U  I  O  P  [  ] 

qw`rty¨ˆop[]

 A  S  D  F  G  H  J  K  L  ;  ' 

aßdfghjkl;'

 Z  X  C  V  B  N  M  ,  .  / 

zxçvb˜m,./

Answer 1

The problem is no layout selected for physical keyboard - it's set for each keyboard separately in Settings > System > Languages & input > Physical keyboard > [Select your keyboard] > [Select a layout from a list]