yes but lightning is really good for privacy, spark isn't
Discussion
Lightning is not really that great for privacy. When enough people use it, it will result in non-fungible coins just like Bitcoin does. Telling people who need privacy that lightning is “good for privacy” is irresponsible. Monero, Pirate Chain, Tari are the “good for privacy” choices. You should say the truth: that everything else is not fungible or a public transaction.
I think this conflates two different points. Lightning *can result in non-fungible coins because you can see that a UTXO is the result of a channel close (if it wasn't a Taproot) channel.
but the privacy of the actual payments moving across LN itself is (probably) good. you can spin up a node trustlessly without permission and open channels wherever you want. you could have two nodes and use one for routing all your payments and never send at all from your ultimate node, keeping your ultimate nodes pubkey to yourself.
The main issue with LN privacy is that you'd never know if it broke. since the network tends towards centralization it's probably fairly easy to map and if routing nodes started colluding and doing timing analysis of payments the end user would never know.
so with the UX burden and difficulty verifying your own privacy, sure why not use Monero?
but it isn't true that you can't get good privacy on LN.