How many nations can you travel with dollars in your pocket, and can still live there, and how many you can do it with Yuan? When this switch hurts nations like Brazil more than it helps them, we are going to see them give up pretty quickly, and they will instead try to go back to dollar. This will take of course about 10 years or more, but it will happen.
On one hand What you said is correct and another negative impact is that high energy price and the global competition that's been happening is creating recession in US and the US economy is hurting badly. With non-stop money printing dollar is inevitably losing value.
On the other hand the US regime is heavily increasing its income through 4 major exports that would have never happened without this proxy war. They are oil, gas, food (eg. wheat, corn, etc.) and weapons.
For example without the proxy war with Russia the gas price would have never reached this high and US would have never had this much demand for their super expensive LNG. Russia needed to cut off gas export to Europe for Europe to be forced into buying US LNG.
Same with the other 3.
The real question is, how much longer this trend can continue before it all falls apart? What if the 70's is repeated and Europe dumps dollar again?