Is There a Difference Between a Block Producer and a Decentralized Exchange?

The idea is that by a block producer or minor selectively re ordering transactions, they could potentially benefit themselves by also concurrently going and doing trades on some of these decentralized exchanges. And obviously the obvious argument, at least fomterium pro proponent, would be, well, this would be detrimental to the, to the system. But i think there'ses a very fine line between so to t profit incentive that is made available by these opportunities,. The extent to which the sort of ecosystem the thermico system is willing to tolerand it' has been increasingly blurry.