Terminology is confusing, your ask is nip46 server in Damus/Amethyst/Primal, nostrconnect as QR scanned by the mobile app-signer should work, I think.
+1, would be great UX imo. I haven't seen support for nostrconnect URL QRs in clients that support NIP-46 login tho.
Well I guess mostly that's bcs there are no mobile apps with access to camera that could scan the QR, nsec.app could do that theoretically, but I haven't seen any demand yet
well, OP in this thread is demanding it 😁