Did a quick test to see what the Bitcoin Core App might look like in the Liquid Glass style. After trying it out in the beta, I don't think the changes are super massive. The biggest thing is probably that there are much fewer fixed bars at the top and the bottom. Those buttons are moved in a little bit as floating elements. And then you have the progressive blur behind them to create the needed contrast. Those buttons are also more dynamic and re-arrange as you scroll, or morph when enabling modes (like going to select/edit in a list). It's like there are two layers now - the content layer and the glassy button/function layer on top of it. Still learning though.
I imagine that adjusting to these is much easier with native iOS, and apps using web technologies to render have a super hard time to imitate those behaviors.
What do you make of Liquid Glass? Did you have a chance to mess with it yet?