I have found a solution: lovelace-state-switch in connenction with Broser-Mod by thomasloven. https://github.com/thomasloven/lovelace-state-switch. lovelace-state-switch can be used to hide maps on certaintablets using the deviceID.
But there is a bug that needs a workaround.
It does not work as soon as I have renamed the deviceID in the browser mod settings.
An example: deviceID, issued with commandl “localStorage[“lovelace-player-device-id”] into your browsers console”
In Browser-Mod deviceID renamed to “k68w14-chrome”