I live very close to the Quebec border and I’ve never once in my life experienced this. My French isn’t all that great and not once did a Québécois give me a hard time. If anything they were super patient and were happy to see an Ontarian do their best to speak the language.
I’m new to Linux. Every time I’ve had a major issue with an application it turned out to be due to a flatpak. I’ll stick with other options for the time being.