is bitcoin truly decentralized? in the sense that there’s a centralized ledger that anyone can access and see transactions? i know the ledger is copied and dece

is bitcoin truly decentralized? in the sense that there’s a centralized ledger that anyone can access and see transactions? i know the ledger is copied and decentralized to all nodes but for instance if i go on the street corner and buy something with cash, no one in the world knows other than the participants. with bitcoin everyone in the world knows and it’s recorded for all time