Historically, the euro has generally been a good bit more valuable than the dollar. But in 2022, the dollar was more valuable than the euro at a point. Recently it's been bouncing around at nearly 1 euro=1 dollar.
Then there's the yen. Used to bounce around between 1 dollar = 100~110 yen. Recently reached 1 dollar = 162 yen.
The dollar losing its value is a return to the pre-covid norm. Lots of countries pumped money into the US to make money off skyrocketing stocks and high interest rates, and now they're pulling it back into their countries. It's a high that can't last forever. And if it did last forever, that would not be good for the world as a whole since it would mean every country is supporting the US at the cost of devaluing themselves.