Socket placement

The post makes sense with the picture, and my first response is unnecessary. It probably even makes more sense to place one at both spots, one next to the door and one on the left, provided there is a cabinet there to put a lamp on top. This way, the socket by the window would always be free for charging a phone, etc. I don't know the purpose of the room. Possibly a children's room? Then with a bean bag in front of the window and the phone plugged in.

To the right of the window there will be one anyway. The wall to the left of the window is about 2.30m towards the front. Maybe a TV stand here. It is a "guest room"; opposite at the knee wall is a sofa bed. Possibly the sofa could also fit just barely to the left against the wall, but the long side (ottoman) would be in front of the window towards the knee wall. TV stand then in front of the knee wall.... therefore the use of the sockets would be better to the left beside the window so as not to kill the space on the left wall with them

Interior wall is always better!

Why?

Hm... I would have thought more of the exterior wall. To not waste any space on the interior wall with sockets, LAN or SAT outlets.

Depending on the layout and how you want to arrange the furniture, you can't generally say exterior wall/interior wall.

The electrician is reluctant to put an outlet on the exterior wall, I'll say it straight.

I've never heard that. Why should he be reluctant to do that?

I would put a few sockets + LAN + SAT on the interior wall. You can make a nice TV wall out of that. Put a sideboard there and drill holes at the back for the cables. Don't forget the flush-mounted cable duct. Don't let anyone talk you into a "multi-media duct". A simple duct is more than enough and costs less than 10€. You can do it yourself in 1-2 hours with a hammer and chisel if outrageous prices are charged.

in this respect, the benefit of the sockets would be better to the left next to the window so as not to kill the space on the left wall with them

But in the end, a socket will still be placed somewhere on the wall to the left, right?

Because to the left of the window, the socket would probably look best in the column with the belt holder? and then you definitely need another socket on the wall to the left.

A floor plan of the room would be more useful for assessment, by the way.

My basic experience .. there should be sockets on all walls of a room, sometimes more than one.

Airtightness

Here is the plan....

Concerns "Guest". To avoid confusion, the terms "Work" and "Sleep" need to be swapped.