Not that I'm aware of

If there are ways, they are probably bugs. I imagine that if an LN protocol dev found out there was a way for a third party to identify what backend an LN node was using, they would try to fix that, because it leaks information that is none of the third party's business

That said, you can have some confidence that the LN node must use a backend that supports segwit, and there may be other info you can glean