Apple lost its EU court challenge. Is Europe winning the war on Big Tech or just making it more expensive to operate there?

Apple lost a legal challenge against the European Union's Digital Markets Act this week after the EU General Court upheld the classification of iOS and the App Store as gatekeeper services. The ruling strengthens Europe's hand in its long-running push to rein in Big Tech, especially around app stores, payments, browsers, and interoperability.
The DMA is the most ambitious attempt by any government to structurally change how dominant tech platforms operate. The theory is that forcing interoperability, allowing third-party app stores, and reducing platform lock-in creates better outcomes for consumers and competitors.
The counter-argument, which Apple has been making loudly, is that this dismantles security and privacy protections that depend on closed ecosystems. Whether you buy that argument probably depends on whether you think Apple built those protections for users or for itself.
Europe wins these legal battles consistently, but does it change user behaviour at all? Most iPhone users in the EU haven't switched to third-party app stores even where they're now allowed. If the regulations create structural change that users don't actually adopt, who exactly won?
Do you think EU tech regulation is genuinely improving the landscape for users, or is it primarily a mechanism for fining American companies?