@silverpill @ademan Yes: https://moneroresearch.info/index.php?action=resource_RESOURCEVIEW_CORE&id=95
kayabaNerve's comment was
"Unfortunately, this relies on transaction chaining, and therefore is not applicable to Monero despite its intent (without a hardfork which does enable transaction chaining, such as the eventually planned Seraphis upgrade)."

@ademan : There is no known way to make Payment Channel Networks private, even with Monero (see the paper below). The authors of the MoNet paper have not communicated with anyone involved in day-to-day Monero development and research. There are other payment channel proposals for Monero by the way.

Tang, W., Wang, W., Fanti, G., & Oh, S. (2020). "Privacy-utility tradeoffs in routing cryptocurrency over payment channel networks." https://moneroresearch.info/index.php?action=resource_RESOURCEVIEW_CORE&id=120