It would. Muun wallet uses 0conf to make lightning swaps tho, which is why I actually hate it. All the fees of on-chain? Gross. There's this gift card company that just accepts payment without an on-chain confirmation (0conf) they argued that 60-80% of their customers still use on-chain.
Anyway, if you want to reward miners for adopting full RBF, Peter Todd explained how to do it: #88452