I think #noStrudel is the first app to support the nostr-connect process initiated on the client side thanks to nostr:npub1w4uswmv6lu9yel005l3qgheysmr7tk9uvwluddznju3nuxalevvs2d0jr5 for adding NIP-46 support to amber

nostr:nevent1qvzqqqqqqypzqateqake4lc2fn77lflzq30jfpk8uhvtccalc66989er8cdmljceqqs0xl3uexeenlr30lahfwepwfch0khgrxmqt4nk382k7gw3kvujaxq4c3nry

Desktop

http://cdn.hzrd149.com/3b32bf6f86de95b3a830056d8dcf23e1efad882b4baf2f078e0ab2ad9193b27a.webm

Mobile

http://cdn.hzrd149.com/672f003a7399e1875a594dcfcb188ee7fba248dfcff122dbe652d5e1e9acc14f.mp4

This is only on the next.nostrudel.ninja version for testing (which is why there are timeline loading bugs)