Why are people sleeping on Booker?

Not a suns fan but a Laker. In recent news I’ve seen a of people talking about how the suns should trade booker now cause of Beals contract and the likely trade of KD but in my limited viewings of nba games isn’t booker just beneath top tier? I feel like he always massively delivers in the playoffs and I don’t think anyone else would be talking about a sub 30 year old borderline top 10 player being put on the block without asking, so what am I missing?