ThePasha
Screenshot didn't work... had no time to understand why (also attached error). Therefore attached pics from screen
Resolution I changed by modifying /boot/config.txt, in particular set dtoverlay=vc4-fkms-v3d and hdmi_cvt=1980 etc.
Changing resolution in Settings->Raspberry tried before, but it lead me into black screen and reflashing only (there was bunch of comments re this in the forum)
TNX