Yes, giving your data to someone is not necessarily bad. Consent plays a huge role here, and is why privacy online is a concern: people don't really know how and to what extent they are being tracked, and service providers are not eager to educate them. The cookie popup for example, rather than being informative, is an annoyance at best. So I think educating people about security and privacy concerns online is a crucial component in being able to change malicious practices.
And yes, a decentralized internet would be great, but unfortunately to me seems like an utopia rather than a possible reality. You are also right about the services -- in many cases the service is actually really good. It really is a complex question which does not have black and white answers.
Sorry I don't know much about this. Why would it be beneficial to install this in addition the package manager that's already on my system?