AWS most certainly isn't for as far as the data protection is concerned. An EU entity runs the EU regions of AWS cloud, you enter a contract with that entity and _not_ with the parent and the data is under the EU law.
The core issue here are the CLOUD ACT and FISA Section 702.
Basically the US government says it gets free access to all data stored by any US company or its international subsidies anywhere and that non-us-citizens have absolutely no right to any data privacy at all.
However european citizens do have such a right, and as such, companies can not process personal information using american subprocessors, because those can not guarantee to respect the citizens rights.
For a long time this was all about some contractual clauses between processor and sub-processor: the american subprocessor guarantees by contract to respect the data subjects fundamental right to data privacy.
And then the USA made the CLOUDA and FISA and all those contracts are no longer worth the bits they are encoded in. American companies are by law required to not respect the right to data privacy and can not guarantee to respect it in good faith, as they are themselves subjects of a surveillance state.
Now look at how AWS reacted to this problem: they added new clauses to the contract with their european customers, in which they promise to challenge law enforcement requests, especially those that are overbroad.
When EU goes after FAANG like this, it pushes them to position themselves against mass surveillance and in favor of a global basic human right to data privacy. In my honest opinion this fight is very necessary and i can only hope that humanity wins against surveillance capitalism in the end.
Nothing comparable to AWS/GCP/Azure.