Thank-you both for your input! I think I'm tossing up between putting the chairs in the nook or against the long wall. If chairs go in the nook, it's cosy and there's more walkway space as you said, Luke, for beanbags etc. However, what would I do with the 2m wall near the entrance? Would seating there be a bit odd? However having the screen in the nook would allow for a longer row of seating I think? So potentially more people could fit in, although those sitting near the door may have an obscure view of the screen. It seems like both options have pros & cons! We don't have anything that needs to go in, so to speak, although plenty of seating options and tables for drinks etc would be really great!

Before replacing your curtains as this can be quite expensive for such a large window, if they are in good condition, add a band of extra fabric to the bottom in what ever suits you, your existing curtain track can then be moved up to the ceiling for good looking full length curtains without the large round eyelets, could save you a lot of money, I would look at replacing/removing the sheers cheers

(overlapping posts but doesn't change suggestions especially need for locations of doors and windows) to make space for a 55" TV i would swap rooms and make a media room with a wall of cabinets to include the TV, music, books etc and have a roomier dining room with extra small lounge chairs that can be rearranged when you need seating for more than 4 to watch TV..the lounge could be a sofa bed with a storage coffee table for bedding but best size and placement of all furniture depends on measurements and you will use an accurate plan of the whole apartment (including exact size and location of all doors and windows for choosing furniture, floor and window coverings, appliances, built ins, kitchen cabinets etc etc so if you can make a rough plan showing the distance from the windows and doors to all corners i can make a more accurate plan for you

I’m set up in our sunny spare bedroom. Happy with my spot as I have views to the street and a desk to work from.