Practically, what would this mean for an end user? Will Signal be forced to simply pull the app from Google Play and iTunes for Canadians? I sideload the APK through Obtainium (which can source directly from signal.org) anyway. And unless the government makes it possible to go after end users directly, why would I stop? It's my device, I should be able to run whatever code on it I damn well please.
Or will Signal be required to reject Canadian messaging traffic entirely?