Excellent post - I completely agree that furniture plays a key role in the design of the living room. It is truly the basis on which much depends: comfort, functionality, and the visual style of the space.
But, in my opinion, we should not forget about the important role of the walls. They create the background for the entire composition and can either support the chosen style or "destroy" it if the design does not match the overall concept.
I would recommend paying attention to neutral wallpaper for the living room - this is a great way to add depth and coziness without overloading the interior. The neutral wallpaper for living room options from
https://fancywalls.eu/wallpaper-pattern/neutral-wallpaper/ look especially good. They are unobtrusive, but at the same time create a neat, thoughtful image.
So yes, furniture is the base, but the walls also deserve attention, especially if you want to achieve a holistic and stylish interior.