Hello Arne,
I always keep running VPN on my devices which leave my home.
Since the "Reconnect on network change" function does not work reliably in your app, I use macrodoid for reconnecting when changing connections.

Other applications can only control your app via intents.
When your app is addressed via an intent, your app always opens in the foreground.

I would like this behavior to be adjusted so that despite Intent your app stays in the background.

Thanks