@Nebuchadnezzar_II It's a great question and one that still isn't anwered. On one hand, these kinds of platforms have been hyped up for the last 4 years and have never delivered. And hacks of these protocols make them hardly the answer to everything. Even these DEXs all the hardcore privacy people pitch like RetroSwap have been hacked.
On the other hand, there is a lot of demand and hope for these things. But even if they did work, instant swaps would probably still exist and be a front end for a DEX.
It really doesn't seem like decentralized liquidity will take over and make instant swaps obsolete. The reality is all about chain analysis and AML. Wagyu tried to say they were such as DEX but they stopped trades once hackers tried to push a lot of funds through.
An actual DEX that worked, all the developers are in serious trouble day one. Even exchanges that will process high AML do so selectively or in different modes or for very high fees. So the risk model of taking every coin on a DEX is just not practical. People hyped up atomic swaps for a long time, they are atomic flops, hardly anyone uses them and they introduce so many problems like slow trades and low liquidity, software you need to run. A DEX is just unproven for Monero and this could be worse for privacy since there would be some kind of onchain link.