My room is basically empty except for my bed, computer/desk, birdcage, and fan. It even has grey walls lol. This is mostly because my preferred horde is old books and they are pretty expensive so my collection is small. I also like maps, historical trinkets/artifacts, and indegenous art but I am unemployed lol.
I don’t dislike what I currently have but I do wish I had unorganized stacks of books everywhere (if only my bird would not poop on them)
Barren walls, neat small hordes of interesting things on bookshelves and in drawers, all my furniture is either beech wood or its grey or black. I was a bit more of an interest hoarder when I was younger, but then I lived with a trinket collector and I developed an aversion to too much stuff so now I get rid of stuff I dont use.