gnome-shell-extension-caffeine - 55-1 main

This GNOME Shell extension provides an icon which can be toggled to
inhibit the actions that would normally be taken when the system is idle,
including screen locking, screensaver and automatic suspend. By default
it also inhibits idle actions while any window is full-screen, and it can
be configured to inhibit idle actions while user-specified applications
have any window open.
.
Please note that each user will need to enable the extension manually, for
example using gnome-extensions-app from the gnome-shell-extension-prefs
package.