There’s a lot of bullshit in those numbers though including things like unrealized capital gains and real estate. Trump is in trouble for wildly misvaluing his real estate (including openly lying about factual information like square footage) but it’s almost impossible to accurately value real estate outside of a sale happening - things like depreciation and local market prices fluctuations are all just guesses. Most real estate is valued as low as the owner can justify (outside dumb pride and weird tax tricks) just to dodge property taxes.
Net worth is an easy number to guess at within an order of magnitude but it’s really difficult to actually calculate - even for Americans in America… guessing at the wealth of some Bhutanese millionaire who has a deep in with the local government and can bribe officials to undervalue or misassign property would be extremely difficult.