Short TV Wall - Ideas for Design

I would not extend the wall, as the room is already so small. Maybe you can, like in the picture, recess a TV lift into the ceiling. Of course, this involves costs, but then the TV is only in the way when you are sitting on the couch anyway, and it can also be somewhat larger than the wall.

Wouldn't a combination of a projector and a retractable projection screen possibly be an option? Of course, it depends on the budget, but the wall really isn't wide... This way, you could possibly also save the obligatory "TV board" on the wall and be more flexible with the wing door? Switches or similar would not have to be implemented either...

I would actually be interested in an analysis of the entire room. Probably, if the slanted room is meant to be a multipurpose room, then I would see the chill area there and approach the 33 sqm room differently in terms of furnishing than BT suggests, for example placing the dining table where the sofa corner is now. That also seems to be a flexible partition wall?!