Vance's questions to Powell on this topic are interesting:

"Now, I know the strong dollar is sort of the “sacred cow” of the Washington consensus, but when I survey the American economy, and I see our mass consumption of mostly useless imports on the one hand, and our hollowed-out industrial base on the other hand, I wonder if the reserve currency status also has some downsides, and not just some upsides as well."

https://www.vance.senate.gov/press-releases/icymi-senator-vance-questions-chairman-powell-on-the-u-s-dollars-reserve-currency-status/