HP makes them, so does Dell. They cost a bit extra, but essentially the whole Federal government runs on nothing else.
The difference between EU and US is that it's possible to make all components in the US, using US equipment, and so some companies do because it commands a pretty decent premium. It's not even that hard since most components (e.g. reference motherboard designs) are still designed and actually built in the US. China still really mostly does what you might politely call "commercializes US tech". And let's not discuss too deeply if they correctly pay licensing for all the components they make, because nobody enjoys that discussion.
And yep, as you might expect, only Intel chips, no Nvidia cards ... and that's not the end of the limitations. The previous version had no USB-C monitor support, never mind one USB-C cable to multiple monitors, but last year intel really pushed a bit harder. But even this year, I'd hope you're not going to be trying to use these machines for gaming.
The EU can't even make a modern motherboard's USB port chip.
Oh and yes, there are cracks in the US version too. The phones used, for example, are iPhones. Radio designed in South Korea ...