I set my mom (62) up an old laptop running Ubuntu last year when her laptop was stolen out of my sister’s car. She’s adjusted fairly well to it. She needed a lot of hands on support at first and any time she uses her printer, but she has figured out how to do a lot of things on it on her own.
She makes papercraft activities in inkscape for a weekly storytime she hosts at a bookstore and has gotten very proficient, but still needs some hand holding when printing errors crop up.
To be fair they’re not actually lying, they are misrepresenting the truth. Facebook actually doesn’t sell your data to third parties because they lease temporary access to it instead. Selling the data would mean they couldn’t recapitalize it with the same customers.
Meta’s customers couldn’t use it to skip doing their own market research and need to already know who they want to advertise to before they buy ads with Facebook. (It does provide insights and analytics about demographics during a campaign as well)