Yes, I have arguments with my family. What I don't do is write a book about a load of petty shit about my father, step mother, brother and sister in law, all of whom I profess to love, and go on an international tour of interviews talking even more shit about them.
Harry has been at every event?
He turned up to his grandfather's funeral, and had a massive row with his dad and brother. We know about this because it's the opening of Spare. He couldn't be bothered to see his grandmother when he had the chance during her last days though.
He turned up to his grandma's funeral and fucking whinged about it in Spare - accusing William of keeping him off the plane to Scotland. He wrote about not joining his family to dine. And somehow, his mate, Omid Scobie knew that nobody talked to him and Meghan after the walkabout - info only 4 people knew and only two of whom would have leaked to that person.
He told the world in his post Spare interviews (Anderson Cooper, Tom Bradley etc) that he no longer spoke to his brother or father.
He turned up the Coronation ceremony and promptly flew back home again immediately, refusing to join the family lunch.
He saw his cancer suffering dad for mere minutes.
He "turns up". That's about the best you can say about his relationship with his family.
The tabloids get all the information they need about Harry's relationship with his family from Harry himself.