Welcome to the forums! As of now the settings follow the camera like you experienced. If you or they want to disable notifications, you or they will needs to disable at the OS level (if you want different than what the other user wants) but this will effect all Wyze notifications from the app.
There is a large wishlist item seeking the feature you are wondering about. Give it a vote to help it along! It is labeled as researching, so it is being looked into at some level.