==== Xfce Notes ====

Install: https://www.server-world.info/en/note?os=CentOS_Stream_8&p=desktop&f=5

Locking screen shortcut:
  Applications > Settings > Keyboard
  Click Application Shortcuts
  Look for xflock4 in the list
  Double-click the entry to program a new key, like Super-L (Windows-L)