I agree. Before you know it they'll be creating browsers to run in the browser to run browsers to run browsers in the browsers in the browsers.
On a more serious note, Flatpak and other sandboxing solutions make 100% more sense than using something that already leaks way too much in order to sandbox apps.
I am seriously thinking about creating a silly webpage running Firefox another browser (preferably Firefox). But, my experience with C++ is limited, anyone want to pair up?
Fuggedabout it. That would undermine their whole business model. Knowing Apple, I wouldn't be surprised if they remove WASM support from mobile Safari on the grounds that it's "bad for battery life".