European Commission not GDPR compliant though it was responsible for the law

That relationship is very important as it’s essentially a lobby.

However beyond that it’s very hard to definitely make any claims and currently also use lawful basis other than consent that are not tied to pre-existing contracts.

Other parts of the law like those which refer to anonymization including pseudo-anonymization, deletion and processing halt are also very tricky to implement currrently in a guaranteed manner.

For example if I pseudo or fully anonymize a piece of information what is the benchmark that i need to ensure that it’s complaint?

How resilient does it need to be against cross referencing? Specifically for examples how many additional pieces of information does one need to de-anonymize my information before my process is consider non complaint?

Do I need only to consider information that i collect or process in this benchmark? Or do I need to evaluate my process against any potential information that can be gathered about a data subject by any other party?

You might misunderstand law in general. Much of it is expert guidance. For complex areas, like GDPR, you might have 3 lawyers with 5 different ideas. Most law is educated guesswork until it reaches court.