[Symbiote]

The European airlines with in-flight wifi (not necessarily Starlink) have several grades.

The free connection replaces the screen: you can see the flight status, destination tourist guide, connection information and the in-flight menu and catalogue. Sometimes you can watch films, TV or stream music and podcasts.

There's a cheap level which claims to allow messaging services.

Then something 'normal'

And finally something 'business' which supports VPNs.

One airline I used had holders in the headrests to support a tablet or large phone. (I forgot which one.)