I was installing an App from the playstore in one user profile (Profile A). After the App Symbol appeared on the homescreen something went wrong and the App wouldn't open. Playstore showed that it is still installing the app for an extended period of time. I got annoyed and switched profiles to a different user profile (Profile B).
As soon as I opened Profile B my screen moved to the right, where I saw the App appearing.
I immediately uninstalled the App. When moved back to Profile A, the App worked.
I've been experiencing hang-ups like this during installs frequently.
None of my Profiles are allowed to run in the background.
I use the same google user on both user profiles and I have playstore installed on both profiles.
I'm concerned that it might be possible to push apps from one user profile to the other. Even though they should be separated completely.