Luckily most governments and societies today respect a sort of legal Platonism where the law as an ideal both constrains the government and the owners of property even though the government is tasked with implementing it. It might not be empiricist enough for some people but it seems to play nicely with human psychology’s inclination towards the mystical. And of all the cultural fantasies we might share, we could definitely do a lot worse than human rights and the rule of law.
No. Taxes are spent on goods an services, the same as any property owner spends rent income.
The outcomes of expenditures on each part is different (sometimes a plate tax is actually applied to road maintenance). But the concept of a slush-fund and no (or few) legal guardrails for expenditures means your tax dollars probably land in a pet project somewhere, or are consumed in the financial friction of government bureaucracy.
If there is property tax, only the government owns the property and rents it to citizens.