To me, in some way, Meghan is very american, it's not an insult, but I would say american people have been used these last decades to be the center of the world as the first power and amercian people can be clueless about things outside of the US. Even the smart and educated ones -there isn't necessarily a will to understand others or to not judge verything from their point of view. It seems like she was not really thinking it would be good to read or learn things about the RF before meeting them. I am not talking about gossips but to pick a well-written historical book about the british monarchy and british culture and ask questions to Harry. In a way, even though he seems to be very protective of her and she seems very motherly about him as someone was saying before, they seem to have communication problems - or at least at the time they met, maybe now they have a better way to communicate.
It wasn't expected from Meghan to be a senior royal - Harry and Meghan said it, so maybe if Meghan had a better idea what it entails she would have made a diferent choice. I think Harry was dreaming to have someone at his side to go through the royal duties. It seems like also that Harry struggled to imagine himself outside of the RF and having to make a living for himself. But in some interviews, he said how he didn't like his job as a senior royal. TBH the RF has its faults in this crash but Meghan and Harry also have theirs. I am curious if they will also talk about that. I think it's probably the point that annoys me the most with them - they never seem like to take responsabilities for things that went wrong.