> If anything "EU Tech Sovereignty" is a net negative for me.
Is it? If you live in the EU, the fact that pretty much all companies completely depend on US tech to work means that the US can not only spy on them (if Airbus uses Microsoft Teams, then the US government can ask Microsoft to give them access to the data and use that to help Boeing win contracts for instance), but also put pressure on those companies by blocking their access to that tech (it has happened).
The "sovereignty" part here is a net positive for anyone living in the EU. Net negative for anyone living in the US of course, because being in a dominant position does favour the US.
The default stance should be that nothing you do is private on the internet. If we're talking spying then no service in any country will be secure unless fully encrypted with audits. Any country with an intelligence agency can force companies in their jurisdiction to give them access to data otherwise.