We had a cat that would perch on the top of the living room drapes and pounce on us when we came in the door.
That would be unnerving! Siamese cats are famous for that, too. My sister had one who would lurk on top of open doors in various rooms in the house, then pounce on people as they walked in the room. I have a Siamese mix rescue cat who goes up the walls and across the ceiling of our outdoor “catio” enclosure by putting her claws on the large wire mesh. Should have named her “Spider Cat”.