I’m not sure what “guest accounts” means in this context, because my understanding of sharing devices within the Wyze ecosystem involves a device owner (whoever used a Wyze account to “add” and configure a Wyze device) sending a “share” invitation to another person with his or her own Wyze account—or an e-mail message with a link to create a new Wyze account if the shared user (recipient) doesn’t already have a Wyze account associated with the invitation e-mail address.
I haven’t tested this myself, but apparently shared access users can do this:
This is one of the reasons I’m an advocate of some kind of long-press requirement (preferably with haptic feedback) for turning devices like this on and off.