It is clear now, I am running macOS 11.7.11 (Big Sur) and the iPhone is running iOS 26.5 and thare is the threshold. Running: ping6 -c 3 fe80::e08e:a2ff:fe7f:ead0%en0
PING6(56=40+8+8 bytes) fe80::18d4:7b4f:59df:1202%en0 --> fe80::e08e:a2ff:fe7f:ead0%en0
--- fe80::e08e:a2ff:fe7f:ead0%en0 ping6 statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss
Running: dns-sd -B _apple-mobdev2._tcp
Browsing for _apple-mobdev2._tcp
DATE: ---Mon 22 Jun 2026---
9:30:34.940 ...STARTING...
Timestamp A/R Flags if Domain Service Type Instance Name
9:30:39.552 Add 2 4 local. _apple-mobdev2._tcp. e2:8e:a2:7f:ea:d0@fe80::e08e:a2ff:fe7f:ead0-supportsRP-24
The phone is seen and recognized but bc of the update to iOS 26.5, it doesn't speak the same language anymore.