The sad part about it is that DEX projects are developed quickly but never really take off and be consistent. I mean in the defi world we had so much more money and these days we do not have the same amount of money, this should be proof that it is not a long term profitable thing. 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.
Binance may not be even making any "profit" right now, the way they spend their revenue like crazy, I am not so sure if they have any money that they have to pay taxes for. This advantage keeps them going, but the DEX ones we see end up releasing, promoting, and then just... there.
Of course, the binance makes a profit, otherwise they simply would not function normally, this simply would not make sense. Each type of exchange has its advantages and disadvantages, CEX is convenient because there is good liquidity (in most cases), DEX is good for those who value anonymity, so everyone chooses the best option for himself.