Also in my experience there are two types of 'rich'.
There's the type you are talking about, old money, old houses, old cars, house full of books and tweed with overgrown cottage gardens. They prefer traditional materials, wood, brick. Have antiques everywhere, expensive labels but high quality.
The second type is generally younger, earned the money more recently, the wealth is either from the current or the last generation. They like luxury/social media influenced lifestyle trappings more, modern materials, embrace modern living and tech, large TV, open plan houses either a new build or heavily renovated, formal modern gardens with outdoor kitchens and lots of paving and socialisation spaces, more child centric, more likely to have a playroom/play equipment in the garden.
The second type absolutely uses the tech!