@tylan @topcaser Samsung's legacy RCS app still works but probably only on a much smaller set of carriers than Google Messages. Google Messages did supposedly begin relying more on carriers recently but it's still clearly using a bunch of Google services and carriers are also clearly largely hosting RCS via Google services instead of actually doing it themselves. That doesn't mean it's not open to another app but it remains to be seen how broadly and how well it can work with the standard alone.