I believe the protocol is not to mention harry at all. He is basically persona non grata at this point.
Typically, in a normal situation you would mention harry because he is living the US. bring up bonds of allies blah blah blah.
But Harry is basically like Wallis simpson and her cuck.
So basically you dont bring it up
this is for everyone. unless the King mentions
This may also be true for Prince Andrew.
Prince William was not having anything to do with Andrew as andrew tried to engage him at the funeral. It was the equivalent of the William Scarfing Markle incident without the scarf.
I can’t read this story but you can see it in his face during the video
“William’s ‘fury’ at Prince Andrew’s funeral ambush, told by friends to royal biographer ANDREW LOWNIE. ‘Personal’ feud over Kate and what really happened in awkward encounter revealed”
here is the story about andrew from the mirror
https://www.mirror.co.uk/news/royals/prince-william-furious-prince-andrew-35921957
LOL!!