My manager moved from the US to Sweden, said he got about 60% in Sweden. His Wife isn't working in Sweden yet and they still have more money on pocket. Very anecdotal and might be inflated one way or the other. But I'm not so sure it's as clear-cut as some might think. Unless you're the top X % raking in the biggest $$
You don't have to be top X%. If you are single and graduating college, you will absolutely net more money in US in the tech sector, way more if you are exceptionally skilled.
After that, it depends on your living situation and family situation. Of course 200k in California with 3 kids and a house is likely going to be less than what you could make in EU.
For anyone working in big tech it is very clear cut from a financial perspective. That isn’t the only consideration for sure, but it’s wishful thinking to believe otherwise.