So, if you want you can try new DDX video drivers from Xorg based on EGL glamor implementation (like Wayland one). I use it on Radeon, so it's better than ati.
Radeon
cat << EOF | sudo tee /etc/X11/xorg.conf.d/20-radeon.conf
Section "Device"
Identifier "Radeon"
Driver "modesetting"
Option "AccelMethod" "glamor"
Option "ShadowPrimary" "on"
Option "TearFree" "on"
EndSection
EOF
Intel
cat << EOF | sudo tee /etc/X11/xorg.conf.d/20-intel.conf
Section "Device"
Identifier "Intel"
Driver "modesetting"
Option "AccelMethod" "glamor"
Option "DRI" "3"
Option "Backlight" "intel_backlight"
EndSection
EOF
nVidia users may want to stay with proprietery drivers ?!
Make logout/in for new drivers to be loaded.
Important:
If you notice problems or X don't start (only console view) don't panic type alt+ctrl+f2 and login in new tty prompt
Radeon
sudo rm -f /etc/X11/xorg.conf.d/20-radeon.conf
Intel
sudo rm -f /etc/X11/xorg.conf.d/20-intel.conf
then restart graphics
sudo systemctl restart sddm.service