I think I'd go with Cashu over liquid, if i felt the need to use something beyond Lightning. I haven't run into liquidity concerns, and with fees where they are, anything that I imagine would run into some isn't that big a deal to do on chain. Liquid seems like just another shitcoin; haven't seen a reason why it is any better than say, wBTC or any of the the other tokenized bitcoin options out in shitcoin land.
Discussion
For mass adoption of Lightning, easy solutions will need to be made available. I am using Strike as well as Aqua wallet. I also use Zeus and run my own node and channel. Running nodes and channel management is not for everyone. As much as it’s not liked by many, solutions like Liquid will need to be accepted for mass adoption. Not everyone can run nodes and manage channels. It will get easier I am sure but right now it’s not.