I'm also not convinced that the EU would just let Meta or Google and the like to create privacy-infringing, data-vacuuming third party app stores and then do no

I'm also not convinced that the EU would just let Meta or Google and the like to create privacy-infringing, data-vacuuming third party app stores and then do nothing about it. Those app stores would become nice big targets of every regulator instantly. Not to mention, I wonder if they might be hit with anti-monopoly violations if they pull crucial apps (e.g. WhatsApp) off of the main official App Store in order to force users to switch to their third party stores. Regulators would probably mandate they keep such apps available in as many places as possible. Feels like a public safety issue for people who communicate mainly on WhatsApp, or an intrusive business issue for companies that use Google Meet. There's probably a legal case in it somewhere to be made.