Second wyze account app for light switch

The “only” device that I want to control through alexia is the wallswitch for light. I do not want “cams” going through alexia. Why is it “all or none”?
Can I have a second but separate wyze app/account?

You can set up a separate account, but then you would have to log out of one account and into the other in order to control the wall switch from your phone.

Do you know if it is the same with sharing a camera with someone? All or none?

No idea. I don’t share any switches with anyone.