i'm going to write about this soon. i believe there is a major solution being developed, that's relatively simple, using lightning, liquid and on-chain.

it will make custody much easier while automating things... allowing any organization to run btcpay server even without a lightning node.

https://blog.boltz.exchange/p/launching-the-boltz-btcpay-plugin

028559d218

Some of the issues are unsolvable because of the current on-chain dynamics. but gl to us, I hope so too.

bitcoin

Question: What are the problems with Lightning Again? And Where's Adoption???

I believe that Blitz Wallet, brand new, fixes this.
It handles everything in the background and greatly smooths out the entire process.
It does the on-chain/liquid/lightning swaps seamlessly in the background without the user knowing what's going on or needing to.

It also handles cashu/fedimint for micropayments pretty seamlessly.