fight Big Tearing, stop using X 
a reminder from your friends on the fediverse. boost and tell your friends who still use X (why?????) that the future is here 
@XOrgFoundation I use X because a lot of games still have weird issues and there are exactly zero improvements possible for my setup by switch to wayland at this time
@mitsunee I sometimes have issues with games too, have you tried using gamescope?