Three games isn't enough to base anything on. I've played a lot of games lately, and I still see a pretty good mix of Czech yields, or Czech gives the Germans the finger.
There's a French focus where they basically toss Czech/Yugo under the bus and withdraw their guarantees, versus one that keeps the guarantees.If the Munich conference can't be held it usually means a certain war.
The most common cause of no Munich is Britain taking "a change in course".
In this case the only certain way of France removing the guarantee is by them going fascist. I don't know if they remove the guarantee when going communist or monarchist. If they remove it the chance of Czech opposition becomes much smaller, depending on force comparison.
If the French guarantee is there and there is no Munich it means 100% war.
There's a French focus where they basically toss Czech/Yugo under the bus and withdraw their guarantees, versus one that keeps the guarantees.