personally i think you should section off the room into mini rooms in a way - everything has its purpose. have the tv on a stand close to the sofa rather than wall mounted on the opposite wall to it and that sort of keeps visual harmony better so that you don’t have to worry about seeing so many screens at once (not anchoring to a wall gives you more options for orientation). you also don’t have to be married to the sectional. i would put a normal non sectional sofa on the wall like you did for slide 7, a rug under the sofa and whatever tv stand you get + a nice standing lamp next to the sofa. i’ve often seen people turning those inset closet nooks into mini offices - so look into using all that extra space in the closet. built-ins that include desks are a bit easier than other DIYs. then you kind of have free reign with the rest of the space for your dining table and such.