I don't trust CEX but I need it for trading and to make fiat withdrawals, alot of CEX in the crypto market, and I really careful to choose it, because if we put money there, that mean they has full control with our fund, and we have seen some CEX like MT Gox, BTC-E.COM, Cryptopia and Livecoin is closed and turn in to scam. I only use CEX which has the highest trading volume because these CEX is trusted by many crypto users. For long term investment, I prefer to stored crypto in my personal wallet. For staking crypto, I also avoid to use CEX, much better to make account on DEX or Personal wallet so that full control is belong to users, not the exchange and this is the most important thing in crpto markets because currently less regulation in crypto space.