Welcome to the community and glad you figured it out.Yes, export/saving as screenshot is in my list to hit. BTW, you can change the IF_Condition logic between AND (all) and OR (any) by editing the IF block. Just in case you are not aware of that. Feel free to let us know if you need any help, and of course, your feedback is appreciated.
Yup, AND is what you need in the IF_Condition in your case. I assume you also added both you and your wife’s presence in the Triggers, so the rule can be kicked off when either one of you leaves. You may also want to add a “Delay” before the IF_Condition, so it leaves some time for all presence status to be updated before being checked in the IF_Condition.
Flow: Delay 60 seconds → IF all presences are not present, THEN arm SHM.