Going back to the thread that was created back 2019, the answer is YES 2020 really belong to the DEX and the Decentralized Finance and there's a possibility that the trend will continue this 2021, because of the success of UNISWAP and the many projects that are hooked up in Decentralized finance.
Looks like the OP did not know about Uniswap I know Uni is already live prior to creating this thread its not on the list but its one of the most used and huge in volume this time the only problem is the trading cost because of eth network we need a dex which has cheap cost and can do cross chain trading with huge liquidity.
It's true. I missed a few ETH-based DEXs at the time. I thought about adding them in at a later point but decided to leave the original post as it is.
Uniswap did remarkably well over the summer. It was a great way for people to get into DEXs but it was pushed to it's limits very quickly imo.
Bitcoin was intended to be P2P cash and Ethereum was intended to execute smart contracts written in Solidity.
Neither of their blockchains create an optimal environment for running a DEX as they weren't initially designed for it. Uniswap put quite a bit of stress on Ethereum.
ETH 2.0 has the potential to be considerably more powerful, but I don't see how it can attain a fluid level of interoperability without using wrapped assets.
There's a reason I've been talking up Stakenet DEX this whole time.
Bitcoin needs Lightning Network as a "relief valve" for on-chain congestion. With a proper L2 solution in place, BTC will be very effective at serving it's original purpose as P2P cash. Transfers instant. Fees very low.
Ethereum could equally benefit from relieving it's on-chain tx with a Layer 2 solution like Raiden.
Stakenet DEX has been working towards a fluid, native interoperability on Layer 2 since 2018 - long before there was a demand for DEXs, long before people started adopting them in large numbers, and long before they began to realize the shortcomings of using Layer 1 as the platform for executing a flood of trades. Executing atomic swaps on-chain, while inherently secure, is considerably more expensive and, as demonstrated by Uniswap, leads to rather high rates of failure. Imagine if Uniswap was handling Binance's level of volume in addition to bots that trade quickly and maniacally! It would greatly burden the chains involved in and detract them from their original, intended purposes.
As Stakenet has continued to build on this model, a few others have followed suit. Uniswap itself has been looking at Layer 2 to help scale out. It is, however, still bound to Ethereum.
Stakenet/XSN is fast on L1, code-agnostic, Lightning compatible (BTC/LTC and all LN compatibles), Raiden compatible (ETH/ERC20), and flexibly adaptable (more/better L2 solutions can be adopted and implemented). At it's core, XSN was designed to do exactly what it's doing - bridging different chains with different purposes speaking different languages together so they can achieve a more harmonious level of interoperability between each other, and offsetting as much unnecessary stress from Layer 1 as possible.
It is increasingly important over time that both BTC's L1 and ETH's L1 are as optimized as possible! Otherwise, they will both run into scaling problems fast. Remember in 2017 when crypto really started to take off and then Bitcoin tx started taking hours upon hours to clear? It will only hinder crypto's growth.
Stakenet DEX went into open beta in late August after a lot of stress-testing. The open beta currently executes L2 atomic swaps between Bitcoin, Litecoin, and XSN. L2 atomic swaps between BTC and ETH are being stress-tested in private beta and should be coming rather shortly.
They're also stress-testing a Uniswap-like interface now known as the "Simple Swap UI" - SSUI for short, where all you have to do is deposit to a private wallet, choose the coin you want to swap into, and press a "swap" button to execute the tx. I've tested it personally and am very excited to see the impact it can have on this industry. There's a very promising future ahead for this sort of technology!