I think centralized Exchange are too overrated. DEX should be the future as it gives us anonymity and no withdrawal limits, and it is much easier to use. Even some centralized exchanges are now opening decentralized branche.

In the long term we want the exchanging of tokens to be frictionless and to disappear into the protocol layer. If you transact with someone who wants a different token than you hold, the token swap should occur behind the scenes within the single transaction. This will only be achieved with some sort of DEX and atomic swaps as part of the infrastructure layer. Until this future comes about support the DEXs that are out there today by adding your liquidity to them.