Hi ddimisa, that's a pretty interesting question! looks like there are several ways to approach this. Note I've never tested this and only found these resources online so take this with a grain of salt.

1.) Manual Method: https://support.apple.com/guide/mac-help/set-your-mac-to-log-out-when-not-in-use-mchlp2443/mac - Looks like you can set a logout time under Settings and Security. There doesn't appear to be a payload option for this in JAMF unfortunately.

2.) AppleScript/Bash: https://apple.stackexchange.com/questions/39085/how-can-i-automatically-launch-an-application-whenever-the-mac-goes-idle?rq=1 - You'll have to have the script continually running which can present it's own set of challenges.

3.) Third-Party: Looks like there is software that can track the idle time and execute a particular command

PowerManager:

https://www.dssw.co.uk/powermanager/professional/

SleepWatcher 2.2

https://www.bernhard-baehr.de/ 

Never tried these processes personally so not sure how they'll shake out but hopefully it will at least steer you in the right direction. Good Luck!

Thanks, I'll try and report

You should be able to set an idle logout time within a Jamf Pro Config Profile

Computers > Configuration Profiles > Login Window > Options > Log out users after: ( set time period)

Hi @mickgrant , seems not to work for guest users