Fees are low because there's no expensive resource like block space for transactions to compete, only the nodes that route transactions know about them, so the capacity for transactions is much higher. On chain a full nodes stores all transactions in Bitcoin's existence, forever, which is why we have the block limit and why transaction fees get high sometimes.
I think what I don't get is how it ends up on the blockchain... and it has to or it isn't mine, right? At some point a miner must be hashing it into a block, otherwise as far as the archive is concerned it hasn't moved.
And there's no transaction fees or time elapsed... not sure if it's lightning network or blockchain transaction processing I'm misunderstanding or what.
The funds can't be available until a miner includes them in a block... So the payment is locked to my wallet by smart contract or whatever it is, but I couldn't spend it over the main chain until it gets hashed in? The alternative is it just disappears into lightning vr . Wrecking my head