The poll they cite shows this is clearly not unique: https://www.pewresearch.org/global/2025/10/15/concern-and-ex.... The US is (just barely) at the top, but no country is anywhere close to "more excited than concerned", and several countries are basically equal to the US.
I live in America so that's my perspective, but I would be surprised if this article couldn't accurately describe a lot of other countries.