For me, it’s a combination of two things:
1: What would the MC focus on.
2: What do you need the reader to notice.
For example, in most scenes, I don’t think a lampshade would even be mentioned. It’s not something most people look at first in a room. Just mentioning a lampshade might make the reader hyperfocus on that. However, a lampshade might be worthy of being mentioned if there’s a reason for it.
“The lampshade is a horrible shade of pink, obviously the person who lives here have no sense of style.”
“The pink lampshade is askew and a frilly pillow rests on the floor, which makes you wonder of something has happened here. Was there a fight?”
In the first sentence there’s a value judgement, which tells you something of both the MC and the place they are in. In the second, the lampshade is used to direct the reader towards something, possibly leading into a choice later.
Remember, you are in control of the scene. If you feel something is missing, you are probably right.
Take a moment to ask yourself WHY you describe something. If the answer is only “because it’s there,” then it can probably go. If you say “You walk into a messy living room,” people will imagine what that looks like. No need to describe that there is a couch, a television, a carpet and a lamp until they need to be interacted with in some way.
Then take a moment to ask WHAT the MC is taking from this? It can be feelings, judgment, memories, anything. If the MC is neutral towards things and none of the objects are important the scene can probably be solved in a sentence to get to the scene you want to write. Something like “You hurry through the messy living room, looking for the back door. You need to get out of here.”