One thing the RF do not want exposed is their wealth,income and expenditure. They're happy to change laws to benefit them in terms of inheritance, marriage etc but not to reveal their wealth. https://www.theguardian.com/uk-news/2023/apr/05/how-the-british-royal-family-hides-its-wealth-from-public-scrutiny
The RF personally reprimanded 91yr old Tim O'Donovan for keeping a tab on the engagements they attend which can be used to show how much time they spend in "service" in a year. Mind you, "service" or "work" isn't what anyone in the real world terms work. It's actually fun things commoners use their hard earned wages to pay for to attend or take time off work to attend. Eg elaborate dinners, lunches, parties, giving trophies at Wimbledon, opening new buildings, attending concerts, meeting celebrities etc. Unlike the average peasant who buys their own clothes, their travel ticket and makes their way there. These people have chauffeurs, personal staff, ladies in waiting, chefs, butlers etc who do everything including wake them up and pick their clothes. However, when discussing what they do it must be described as "work". https://www.nytimes.com/2019/03/08/world/europe/uk-royal-family-workload.html
"Every year, Mr. O’Donovan releases a comparative table listing the number of engagements attended by the highest-ranking royals, setting off a flurry of barbed commentary in the British news media. The feeding frenzy comes because Mr. O’Donovan, intentionally or not, has effectively invented a metric of how much the members of the royal family work." https://whorunsbritain.blogs.lincoln.ac.uk/2018/01/13/mr-odonovans-annual-survey-of-royal-engagements/ You can see William and Kate did the least "work" aside two older members.
Here's a good clip every tax payer should listen to https://www.theguardian.com/news/audio/2023/may/01/cost-of-the-crown-part-1-valuing-the-family-podcast