If you need security and privacy in its highest order, then go for a decentralized means of storage, using a centralized exchange will intrude into your private informations, they can be hacked or turn a scam ad government can regulate them against your wish.

When we talk about decentralized exchange and centralized exchange, they both look good in appearance to the the eye but the real fact about them are not from what we can just ordinarily see, but what they were made up of, with decentralized wallet you're in charge while if centralized they are in charge but know this that not your keys not your coins.