I’ve seen many threads suggesting products but they often don’t mention FOSS projects, which should always be preferred to corporate software. With FOSS you are already boycotting capitalism, on either side. Free and Open Source ignores borders and shouldn’t be categorized in nationalist terms, no matter where some of the maintainers happen to live.
Not sure why you say that, all projects I’m seeing they ALL include FOSS, sometimes they just specify if one is European and another one no. Also, and to be fair this is the main reason your post make no sense, there is not only software but mainly services and goods as core part of the projects.