@stephenw10 I can the pcap on pfsense.
HTTP/3 is no longer experimental and is fully active in the iMac it can no longer be disabled manually
2017--> was still in development
Screenshot 2024-07-10 at 20.05.52.png
2021--> This was the background and code for how it works with applications
https://developer.apple.com/videos/play/wwdc2021/10094/?time=16
2024--> Apple has fully activated this on the Sonoma 14.5 and Safari 17.5 it has no option to disable like the link above has.
It also has HTTP/3 DNS much like DoH however pure UDP let's call it DoH/3
DoH/3 seen here:
f065612b-98b0-4959-9e37-68c032208922-image.png