I think you missed the point of the new restrictions. Stopping those practices that are harmful to users is a good thing. Ending endless spying, aka corporate surveillance, that can be a good thing. When Apple made their changes, Apple conceptually blocked any new facebook app that spys on you, because you can't install it. If there's a future facebook store that has the only facebook app (because facebook won't agree to that more limited apple ad/surveillance world capability), you'd have freedom to install that app because of european rules described here - but you wouldn't necessarily be better off by having more spying.
European (and other) regulators are concerned about tech data collection. It’s an issue that’s not necessarily orthogonal to this development. If Meta wanted to try their luck at putting their apps on an exclusive Facebook app store, such a platform would be subject to regulator scrutiny as well, and would be an even more convenient target for investigation.
