>and I like not having any idea of what level my opponent has, so I focus on what happens on the board.
You might like lichess's 'zen mode' in non-anonymous play, which hides everything except the board (inc. opponent name and rating) while you are playing.
You might like lichess's 'zen mode' in non-anonymous play, which hides everything except the board (inc. opponent name and rating) while you are playing.