That's what we created the Liquid swaps for 😁

Think this is the way forward for minimizing fees. Stack through LN, build stack on Liquid (using 2/2 multisig in Green), then peg out to base chain in a large UTXO. Eventually these layer swaps will be built directly into wallets and won't require having to bounce around so much.

Similar to LN but you don't get instant payments with liquid. Also not many people/businesses accept it. I like the idea of using liquid for smaller "change" on chain. For example if a phone costs 950k sats, I spend a 1m UTXO & peg out the 50k sat change. Repeat and after many times you can consolidate & peg back into on chain. I guess you could do the same with LN too

Blockstream Green has Bitcoin, Liquid, and Lightning (recently added, still experimental, need to be actived). https://help.blockstream.com/hc/en-us/articles/23928294732569-How-To-Try-Lightning-on-Green

If buying from exchanges that don't offer Lighting withdrawals you can use Boltz for a swap (0.1% swap fee) or Sideswap's website to perform a peg-in (0.1% swap fee).

SideSwap - Settlement infrastructure of the Liquid Network

The most convenient way to hold, send, receive and swap assets on the Liquid Network, a bitcoin sidechain built for securities issuance and trading.

They also have an app if you prefer. Depending on the amount it might take 2 or 102 confirmations. Check their FAQ for details. Tdex is another app that let you peg-in (0.0%). It takes 102 confirmations. If you use an exchange (Robosats, Relai coming soon) that do LN withdraws, you can use Boltz to swap into Liquid (0.25% swap fee). For peg-out to Bitcoin, you can use Boltz (0.5% swap fee) or SideSwap website or app (0.1% pet-out fee).