Don't threaten me with a good time.
I'd absolutely love it if the Mac App Store were thriving like the iOS App Store. The latter thrives specifically because it's exclusive and developers have to follow privacy and safety rules.
If the Mac Store were the only place you could download Mac Apps, all the big apps would be there and you'd be protected against data mining, and they'd all follow the same standards with a more uniform UI. If the App Store exclusivity falls worldwide, then you'll see the likes of Meta only offering their popular apps on the open web so they could continue to track you. You may have the good sense not to install those apps but many others will, because they must have the popular apps.