US 30-year Treasury yields exceed 6%, and 7% seems possible.

In terms of duration, I don't think a sudden spike will happen in the short term...
For the butterfly effect of French government bonds to spread globally, it likely won't happen overnight and will take some time. (Since maturities still have some breathing room)
Korea needs to be careful too. It looks like Korea is also going to be completely screwed in 10 years.