If you have Android you can create another user which allows you to run multiple copies of the same app with different Google accounts (which you would need to create multiple Wyze accounts anyway). It’s a bit of a pain to switch to another profile, and you won’t get notifications from that other profile, but it works. It’s basically a software way of having two phones, you just can’t use them both concurrently
At a more basic level and one that works with iOS, you could also use two separate Wyze accounts and have a password manager autofill the username/password when you want to , then just sign in to the app using either account.
Just curious why you don’t want to share cameras, is that just for organization to keep things separate? If it’s just Wyze Cams you could create a camera group for each home.