Aren't both pretty imminent in Canada? I seem to recall something about China operating a secret police in Canada to keep Chinese people in line. A Chinese backdoor wouldn't affect you personally, but if you have a conversation with a Chinese person that's critical of the CCP, a Chinese backdoor in your phone COULD affect them.

I guess something like GrapheneOS would work best. I hear they're partnering with some manufacturer to get rid of the Pixel requirement. Very much intrigued personally. I'm still happy with my aging iPhone and don't have a threat model to be super concerned about state level actors, but if push comes to shove, I'm getting either GrapheneOS, or a de-googled Android ROM on a Fairphone at the very least.