Bisq exchange is far from perfect
I know, but that's kind of my point. Any DEX is going to be inherently more complicated to set up and use than a CEX where you can just create an account and hit "buy". The method to getting more people using DEXs is to address that imbalance rather than just create more DEXs. I'm kind of out of the loop here because I've only ever used DEXs and I've used them for so long that they just second nature to me now. What are the biggest hurdles to a newbie using a DEX for the first time? How do we address that?
they will soon move to fully centralized Liquid blockstream as their base protocol.
They are implementing support for it, not moving to it altogether. Bisq as it exists currently will continue to exist and still function as it does (and actually with some improvements to the high fees you mentioned by reducing the number of on-chain transactions required):
https://twitter.com/wiz/status/1385980688428507143Dex exchanges can actually work very well as we saw in case with other altcoins despite high fees, so we know it's possible for people to switch from centralized exchanges to dex.
I should clarify when I'm talking about DEXs I'm talking about DEXs which allow trading between fiat and bitcoin (or some other cryptocurrency). Bitcoin to altcoin trades are easy to perform in a decentralized and private manner.