> Or you're just saying that each sender can see the address they are sending to?

I'm just saying each sender can see the address they are sending to and that is bad for receiver privacy.

> Wait, isn't Bitcoin and literally everything else the same?

No, the lightning network is different. Invoices do not reveal what node or channel received the money. This is much better for receiver privacy.

> what's the issue with people who send you money knowing your wallet address?

Knowing the recipient's address gives the sender something to watch on the blockchain to see what happens next. Does the address show up in a subsequent transaction? Does it sit there unmoved for 5 years? All of that is useful info, sometimes incriminating info, and monero gives the sender that info for free. Lightning protects that info -- it protects receiver privacy way better than monero.