I don't think wallets need any kind of external service logins. And I generally dislike nostr, e.g. how relays work. I don't think nostr relays can be reliable place for wallet backups.
But a separate nostr app with an integrated monero wallet and features could have some sense.
I'm only interested in zero-knowledge proofs and maybe in proover hardware for now. And this area is driven mostly by the crypto industry. As for the tech industry, I don't care much about it, because it sucks recently. I don't expect any good applications from the tech industry.