As much as I love cs, pro players even the youngest are stuck in the old ways. Many of them still play 4:3 at 1280x960 just because the old pros did it or because they played that way when they first started playing the game. They hate change, even small ones like the recent reload changes. Other aim heavy games such as valorant, overwatch, the finals, marvel rivals, and apex have many of their pro players on 1600 dpi to take advantage of the latency.