The most egregious I know of is https://gdpr-info.eu/art-36-gdpr/, which calls for an 8–14 week delay that may or may not apply to any launch. I don’t even think the entire EU must agree on what the conditions will be.
Apart from “a natural person in the course of a purely personal or household activity” I don’t know of any size exemptions.
Apart from “a natural person in the course of a purely personal or household activity” I don’t know of any size exemptions.