"But the CO2 emissions between a completed transition away from fossil fuels (France last century) and Germany (still ongoing) can obviously not be compared"
Isn't that convenient? The truth is that Germany could already have completed the "transition away from fossil fuels" that France did if it wasn't so irrationally afraid of nuclear electricity.
"Once the transition is done"
It will NEVER be done due to the intermittency of wind and solar.