Things that everyone relies on for life are generally regulated by law. Telecom platforms for instance. I’d say the mandatory software platform I need for my bank, drivers license, daily communication, etc should be in this bucket.
The EU declaring both Apple and Google gateway platforms is a much better approach. Congress is abdicating its responsibility to craft the legal frameworks for equal access in the modern age.
The US government is by design supposed to be as minimal as possible, and the laws affecting you kept as local as possible. We're not supposed to have a "the government" that's the same as EU governments. "The federal government should make laws" should be an absolute last resort. When you say "congress is abdicating its responsibility", I'd like you to point to where in the constitution it says that congress has such responsibilities.
Apple was deemed not to be anticompetitive in app stores because there was no existing market of app stores on iOS. Google was more open in allowing other app stores, but deemed anticompetitive by discouraging their use relative to the Play store.
The irony is the more open player was deemed more anticompetitive. OP is saying Google is “fixing” their anticompetitive behavior by eliminating alternative app stores entirely.
However, there is a relevant court case here. The one about Samsung's "Auto Blocker" (https://arstechnica.com/gadgets/2025/07/samsung-and-epic-gam...). Epic Games sued because Samsung made it too hard to install apps from "untrusted" sources. This may be a reason why Google is now trying to make the process more difficult on the developer side instead.