I think there are more of them, just need a deep research. But it is already a good start. I believe the list will be long in the coming years. As some of the states or counties are recognizing the benefits of adding crypto in their payment method, in terms of convenience to some of their constituents, they will try to add this method in their financial system. The volatility factor will be reduced if they will convert the crypto to their fiat right away. But if they want to take risk and possibly want to earn interest, the payment can remain in crypto. Either way, it is the government's prerogative what to do with their crypto stash.
but if more and more countries realize that this bitcoin deserves to be recognized it adds value to the satisfaction of its owners. maybe in the future it will be more than that for everyone's convenience