XMR can be difficult to receive for new users. Having a lightning address to receive funds that can be swapped is significant. Lightning is very popular amongst smaller purchases and online stores. I buy a fair amount of living resources using ZEUS.
I mention Nostr specifically since Nostr is almost entirely oriented around Lightning. Nostr clients oriented around other assets are often lesser maintained and more risky. These clients are a security haunted houses to begin with. Better to have some sort of LN address to receive and then swap for people into that imo.