We have a private instance, and have some android mobile phones running the tests. However, we find the chrome tabs are increasing after tests. Maybe we could think about clearing the tabs in the future.
Thanks,
It tries to though the Android integration with running apps doesn’t clear if you are using 5.0+. In that case you want to go into the chrome settings and disable the integration: Hide Chrome Tabs from Recent Apps Menu in Android 5.0 Lollipop