Websites don’t need an App Store.
Discoverability of PWAs is quite bad. I'd love them to become more popular, but attempted solutions range from "user manually needs to hit the install button in a menu" to banners capable of saying "install freewhatsappupdate.xyz for exclusive whatsapp deals"/"click install to verify you're human".
Microsoft actually tried to bring more attention to web apps by adding them to their app store, but nobody uses the MS app store.
The software on our primary machines used to not need blessing, but that too changed.
this is why any corrupt government allows the monopolies like Google and Apple proliferate. easier to contain a few