Caffeine after installation registers itself in the startup applications and after each boot, tool runs in the background, i.e. without the need to manage its settings. Just after starting the program, leave it as is
Installation latest version into Linux Mint:
Just after starting the program, leave it as is!
sudo add-apt-repository ppa:caffeine-developers/ppa sudo apt update sudo apt install caffeine
Manual control of Caffeine is necessary when you want to disable the triggering of the screen saver in normal mode of the system, i.e. not necessarily when watching the video.May the Force be with you,