A crypto CFD and a purchased coin look almost identical on screen, yet in law they are two different things. With a CFD you enter into a contract with a provider on the difference in price, and not a single coin ever moves to you. With a direct purchase the crypto asset itself belongs to you, and you can withdraw it to a wallet of your own. Almost everything else follows from that one distinction: the leverage you are allowed, the tax treatment, the custody arrangement, and the question of who stands behind your money if things go wrong.