screen
to prevent screensaver from kicking in, create no-screensaver.desktop file in ~/.config/autostart
with following:
[Desktop Entry]
Type=Application
Exec=xset -dpms s off s noblank s 0 0 s noexpose
Hidden=false
Name=No screensaver
to check if you are using X or Wayland:
echo $XDG_SESSION_TYPE