If Harry had shown any interest in farming/organic farming/country life he would definitely have been gifted a country estate like Highgrove/Gatcombe when he married. They could have lived quietly in the country and gently opted out of WRF except for big events like Remembrance weekend and TOC etc. He could have been a voice for farmers similar to Clarkson. But they weren't interested and didn't want that - I think they rented somewhere in the Cotswolds near the Soho house place but it didn't last long, they didn't like it. Of course it goes without saying that's not what Meghan would have wanted. I think if Harry had been developing those interests pre-Meghan he would have ended up with a different wife and his life would have followed a very different (and altogether more peaceful) course.
It's incredible really, given the wide interests of his family, the opportunities open to him, how he has ended up ignorant of and disinterested in practically everything you could think of.
People talk about Africa, and how he once talked about living in Africa, but he just wanted the old colonial style of Africa life. Ben Fogle Lives in the Wild Season 17 episode 7 featured a British couple who have set up a safari park in Zambia. Their resilience in the face of many difficulties and dangers is incredible - definitely not the life for me! And it wouldn't be the life for Harry either - he wants a Happy Valley style of life, plenty of servants, social life, big game, occasional white saviour involvement in some low effort (for him) scheme or another.
I just have no idea how they are going to occupy themselves for the next 30-40 years. They can't live a life of cosplay royals, being a constant thorn in the side and nuisance to William, a drain on the RF finances due to their big spending and inability to fund it, living on the internet looking for perceived slights and insults to clap back at. And apart from all the nastiness and bitterness, the harm they have done to the family, to let them back in - I just think aside of not trusting them, they must just be Sooo boring, totally tedious to be around. They are never going to be back in the heart of the family for that reason as much as for everything else.