It already has informed quite a lot. For instance, the DSA's enforcement was designed precisely with the GPDR's enforcement problems in mind. But it indeed poin

It already has informed quite a lot. For instance, the DSA's enforcement was designed precisely with the GPDR's enforcement problems in mind. But it indeed points toward the federalist direction you fear. While mileages vary, centralization seems to be the only option for real enforcement as otherwise things end up in the lingo of infighting, lack of harmonization, and national bias. The other option is a US-style regulation-through-litigation, but I am not sure whether that is any better (neither for companies nor for consumers).