Google published a new support page to inform users of an ongoing problem between Android 15's Private Space and Wear OS watches. Users have reportedly received notifications from apps they've stored within Private Space,

Google has acknowledged the issue and is currently working on a fix. Android 15's Private Space feature is great. However, you may want to be cautious with it until Google resolves a known issue with Private Space and Wear OS.

Some Wear OS devices are showing notifications from Private Space apps when they are supposed to be isolated to the user’s phone. Google is aware of the issue. No timeline has been given for a potential fix.

If you have Private Space enabled on Android 15, Google is aware of “some known issues you may experience when you use a Wear OS watch.”