> But I actually avoid the App Store these days, both on MacOS and my iPhone. I never really noticed but I just slowly stopped installing new applications from there

That sounds less like avoiding and more like not using. I think this is natural. When the App Store first came out, apple planted the idea in our head that we needed new ways to use our machines. But unless you are a new user, it’s likely you’ve hit an equilibrium where you know how you want to use the device.