I had a similar thought yesterday as I was trying to withdraw BTC over Lightning from bullbitcoin to Phoenix wallet. I would have thought a sizeable exchange to a well known wallet could find a path. No go.
 
I tried using liquid through Green wallet in early 2022 but didn't really understand why it had a use. My mind has changed. Literally just ordered a Jade and plan to learn more there.

Custodial lightning with WOS was so easy.

Anyway, thanks for all your hard work in this space and sorry to hear your previous project was shut down. All the best with your next endeavour.