But you can't believe what they say publicly.
Last year they twice accused their father and the rest of the BRF for not giving them any support when their mother died.
They say what they have to say in public and can't be believed due to the fact that they contradict themselves about their father all the time.
What they accused or what people want to think they are insinuating for saying something else? It's the same thing when people jumped to conclusion that Harry was accusing Charles of not being there when he said William encouraged him to get help. It's ridiculous. They can say something nice about other without it being a jab at their father.
The 20th anniversary was obviously tough for Charles and Camilla as every time Diana is mentioned, the public like to drudge up the past again. William and Harry obviously wouldn't have done all they did in her memory last summer without the support of higher ups at the Palace. They all knew that Charles would take a temporary hit. However, I think Charles ultimately recognizes that his sons just wanted to honor their mother now that they are both finally old enough to have a different view of her life and legacy. William has said that it's unlikely they'll talk about her this publicly as sons again. I think in a way, that was a form a of closure for them. It was to honor their mother, and not to dishonor their father. Moving forward, they work to support Charles in his role as heir to the throne and eventually King, I don't think we'll see the same thing again in another ten years.
And btw, parent and child relationship comes in different ways. A child might have a different dynamic with one parent than other and it could still be different than the relationship other children experiences. For example, Diana took the boys to McDonald's when they are little, and Charles didn't really understand that. That's the type of thing that Diana did with the boys. However, as we've seen with Harry and Charles' BBC interview, they discuss and do other things together. Doesn't mean one is better than other. Just different. And a child can give praise to one parent without it being a shade at the other. And lastly, ALL parents make mistakes with their children at one point or another. Doesn't mean they are bad parents.
I don't follow William much, so I'm not going to speak to that. What I do know is that every time I've seen Harry with Charles, they seem to be genuinely happy to see each other. Obviously, given they are grown adults and have independent lives, we wouldn't see them that often in public carrying out engagements together, but when we do see them, they seem to have a warm relationship. That warmth isn't just between Charles and Harry, but also extends to between their wives.