In Sweden, the Central Bureau of Statistics publish the import and export from all countries. So far the numbers for 2025 has not been published. There it will be possible to see how the trade between Sweden and USA changed during 2025.

I assume similar statistics are available for other countries.

During the last weeks I have seen in the news that the wines from USA decreased 20% and the travel to USA decreased around 20-30 % during last year. And since the dollar became cheaper the normal behaviour would be that the travel to USA increased.

I would look at imports and exports over several years. That data is pretty complicated, since lots of things affect it. A single variable like a Buy European movement probably does have an impact, but measuring it this way won't be easy.

You can check the balance sheets of US companies, they are available online, and you check whether theirs is drop or stagnation in sales to Europe ( compared to USA and ROW)

For a beginner with near-zero economic knowledge, I'd say any US metrics related to exports, or EU metrics for imports ?

I'm not seeing much talk about this in my shitstain EU country. Everyone here is still depending on the US tech giants. No voices for change in official media yet. Closest was that Dutch professor this week expressing his concerns of how US tech giants undermine EU democracy. Was not picked up widely either.

Thanks everybody for the explanation and links. Also found this nice overview : https://www.consilium.europa.eu/en/infographics/eu-us-trade/