Is there a plug in add-on, feature,extension or thing which suspends the screen lock or screen saver in the same way as caffeine or espresso extensions do for gnome?
You can try out the “presentation mode”, to see if that does what you want:
Caffeine-ng should work regardless of desktop.
Thanks for the suggestions.
Definitely Xfce’s presentation mode. It might not be configurable but it does the job and is integrated into the power manager.