Decentralized exchanges have always been lacking essential requirement which are good volumes and great pairs. Dex lack volume. That's a big problem. Even big dex like that of Binance get less than $10M of daily trading volume. Even small centralized exchanges  hit  such volumes easily. Some people may ask, why are volumes important? Volumes determine the strength of a market. To understand better,  small volumes == weak market. High volume == strong market.

Even trends needs volume to keep moving in that direction. And that's something that Decentralized exchanges do not have. I'm not even mentioning the fact tgat some decentralized exchanges have been asking for KYC details.