International market ETFs? Looking to diversify away from US only stocks.

With everything happening this last year in the US, new trade alliances being made where the USA is NOT the center of.

I'm really wondering about Chinese tech and related companies and South Korea or EU markets.

China has done one thing well consistently, copied (or flat out stolen doesn't really matter in the end) existing products and produced them faster and cheaper and taken over markets.

With GPUs, Cars, and social media software, etc ...

I'm really wondering about looking more at Chinese tech ETFs and (because China does like to let Xi halve a company's value if their CEO steps out of line) perhaps some less risky countries like South Korea, EU, etc?

Has anyone been doing much along these lines with their portfolios?