http://lpbitotptnhudy4llhyttmd2jynbuovpbyyz4nmt4zbozgtjr5pkomid.onion/privacy/my-tech-stack.html
I have tried two so called European brands, but they were more expensive, worse build quality and hardware was the same as all the other brands (only often two or three generations behind). So hardware is US, Chinese, Taiwanese, whatever until there is a decent European alternative.