Hello,
we have some applications published to Horizon,
when user1 is logged in and is opening the published application e.g. SAPGUi, application is opening - in full screen window without any option to change the application screen resolution...

and for the other user - user2 is opening correctly - The SAPGUi appears and looks just like it would if it were a locally
installed app.

Any Idea which and where configuration we are missing for first user?
Thank you in advance.