Besides operating their own blockchain, governments could simply issue tokens on existing blockchains, which follow the rules they want. The options are endless, but one thing is for sure, and that's that traditional, fiat-backed currencies aren't as great as the transparent and modernized digital currencies that will eventually have to be updated! So what does it mean that US maintains a fork of Bitcoin? Does it have any affect to anything?
They can have all the forks of bitcoin they want, noone is using a cryptocurrency made by the USA government for sure. I wouldn't get a single of that even if they were giving out free. I might as well have some of that just because I owned bitcoin at a certain time and I promise you that I wouldn't even go and collect it. US government is the reason we are in this mess and their political moves that helps out the rich and the powerful is why we are not using fiat as much as we used to and trying to move ourselves towards crypto right now. The whole reason why I am doing crypto work for the past 2 years and never earned a single fiat during that time is to keep my money away from banks and you can be certain that if US government decides to make their own fork, banks will be the ones who make the most money out of it.