Our company started migrating our tech stack from USA to EU. We are about 90% there with a few small dependencies that could be resolved but we have not yet tackled.
Including EU sponsored programming languages and OSes? This is something I think it is a blind spot we have and not big answer, because even if we take into account FOSS, ISO and ECMA languages, the biggest sponsors for those toolchains are US companies. It will take decades to go back to the cold war days, of hardware, programming languages and OSes with European origin.
Those really don't matter.
> OSes
If you're talking about "US sponsoring" of Linux distros, then that doesn't matter either. If you mean Android and iOS, then you're right.
There's a super simple heuristic here. Does China care? If not, it doesn't matter. China doesn't care about adopting a Chinese-made programming language instead of Python or Typescript or Rust, meaning control over that isn't important. They do care about OS, which is why they put effort into increasing market share of phones with no American OS.