We, humans, grow up and become adults. We accumulate possessions. Because we have room, we can’t give a definite answer how much we own.
The best test is to move places. Then you either appreciate the stuff you own, or you end up in an existential crisis.
Best furniture is the one that’s light, functional, stylish, and that folds into nothing. Maybe inflatable chairs are actually chairs. I don’t know.
Throw or give something away.