To escape from the big corporations of the USA, as a user we have two options, either to use OpenSource alternatives, although not all of them they are free of influences from Google, MS, etc., or using products and services of European companies, which in general are rather more aimed at protect privacy (GDPR), although only a few are known to most. This is why I thought of using this thread to complete a list of the better European alternatives, starting with the link I put opening this thread.
Probably my favorite pieces of software from Europe (not strictly the EU) are
Proton (ProtonMail, Proton Calendar, etc) - Switzerland
Inoreader (probably the best RSS reader ever - and I've tried lots) - Bulgaria