This is the real reason WeChat exists and that there's no equivalent (or market for one) in the west. The built-in apps on iOS and Android for messaging, payment, mapping, photo storage, and so forth serve the needs of a majority of users while consolidating market power for the platform operators Apple and Google.
These integrated experiences had gaps in China, which were filled by Tencent, which then became a sort of virtual platform operator, essentially running its own virtual set of built-in apps on top of foreign-made operating systems.
There's no market for a replacement for a built-in app suite in the west so long as the existing ones are meeting users' needs, which is why we haven't seen Facebook succeed at this. I'm not sure where Musk thinks this market for the "X app" is going to come from.
These integrated experiences had gaps in China, which were filled by Tencent, which then became a sort of virtual platform operator, essentially running its own virtual set of built-in apps on top of foreign-made operating systems.
There's no market for a replacement for a built-in app suite in the west so long as the existing ones are meeting users' needs, which is why we haven't seen Facebook succeed at this. I'm not sure where Musk thinks this market for the "X app" is going to come from.