I saw a video recently that explained how out of the G7 countries, France is the closest to going bankrupt.

That got me thinking though, I know a lot of debt is interconnected between different countries but I don't know how it works exactly or who has what, if France ends up going bankrupt like Greece did about 15 years ago, what ripple effects would that have? Would that cause a domino effect of other countries to also go bankrupt?