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.)
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.)