So on the same system also the dashboard… Hm I don’t know, an Orange pi with Android image I think is better suited(If the screen should hang in landscape mode) .
You have to keep in mind how you want to automate the screen. What I mean by that you don’t want to always go and turn off the monitor with a wifi outlet or something.
I use mmwave sensor to turn the monitor on and off. You just have a lot more options with Android to do that more elegantly.