https://www.simmons-simmons.com/en/publications/ckgch7tn6a09...
In fact, French labor law is quite archaic on remote work ("telework"), so it's odd that they you chose them, of all "progressive" countries, as your comparison point.
Additionally, those same engineers would, statistically, be earning ~33-50% (before tax) what they do now, if they were in France.
I always find it odd when people disfavorably compare STEM fields in NA to the EU; as they're the few fields the US/Canada are almost undoubtedly better to work in (there's exceptions, of course).