This is interesting and I suspect true, as there are many different sources who were quoted (anonymously) in this article. Old friends, but also people who worked with Harry when he was a royal.
I bet it really upsets him that he really has no role now he's living in the US, that he's gone from being one of the most popular British royals to being the third least popular above Meghan and Andrew, and that he almost certainly feels like a fish out of water in the LA bubble of insincerity and nonsense.
LA is a weird place (even for a lot of Americans!) and the way people interact is VERY different to how British people interact. There is a lot of fakery and ego massaging and 'Oh I LOVE your dress', said in a way that you just know that they DON'T love your dress - and as an upper class Brit I bet Harry really struggles with it all.
So does he want to be able to come and go from the UK in peace, does he want to have some kind of role again, does he want to catch up with old friends and have a laugh and a joke and feel like he fits in and people aren't being fake and blowing smoke up his arse because of who he is? I'd put money on it.
Plus, I suspect the death of the Queen and Charles' cancer diagnosis has been a cold, hard wake-up call to Harry. He and William are totally estranged, but Charles is open to having a relationship with Harry again. Charles is a religious man, a quiet and thoughtful man, and Harry is his son. If Harry wants to make amends he'd better bloody well get on with it. His dad is 75 and unwell - tick tock.