They did have Nostr zaps added to their LNURL endpoints at one point, but those were removed 😩
how long until nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq3zamnwvaz7tmwdaehgu3wwa5kuef0qqsvwct7ssehccgu040egxe4k8k9ru4wd605r2kfv9sf94gsu8pftcq2zda5k becomes a nostr client?
I say < 3 years.
Discussion
i.e. https://cash.app/.well-known/lnurlp/derekmross used to have nostr enabled and a pubkey added. shortly after it was discovered it was removed.