you can find your web app in any other phone/tablet/laptop/desktop/tv though, it s not tied to a brand or to your credit card, and crucially competition is not regulated by 2 gatekeepers.
I'd rather trust FOSS Apps on Android then the random unpatched spyware infested browser on a smart TV. And given how firefox is dying a slow death at the hands of overpaid Mozilla CEOs there already practically is much less competition in the Browser space than the mobile space.