While the Wyze app has been improved to allow turning notifications on/off per camera, that has yet to be incorporated into the possible Wyze IFTTT action set. Please hop over to the post below and VOTE for it at the top of the page:
In the mean time, it is possible to Enable/Disable motion detection, and to turn on/off each camera using an IFTTT Wyze action. You may want to consider using one of these for now.