...What CEX has as an advantage is the fact that there is a company and owners that profit and then can use that profit to improve the website...
I believe that it is by this parameter that there is no difference between DEX and CEX, since behind each DEX there is a project team that works on the development and maintenance of a decentralized exchange. It is enough to recall such decentralized exchanges as 1inch, Uniswap and Pancakeswap, which regularly delight us with their updates.
Indeed, there are team members and developers in both centralized and decentralized exchange.
But the difference between them is, withdrawal is automatically done in DEX, while for some CEX the withdrawal is done manually especially when you want to make huge withdrawal.