Bonnie Tyler ... Lost in France ? - but hopefully not on Day I, if you're going in that direction (or any time come to that)!
BTW Had a pretty faultless trip down to SW France three weeks ago. Just one Tesla SC that wouldn't work due to no signal (E of Rouen and in the middle of an industrial estate !!!) Tag worked fine, so no 'silly' glass on my ER either.
Only real issue was that I couldn't get a fast charge above 70 - 80kW anywhere. But recognising that I was doing relatively short runs to test out various stations en-route, I was often topping-up when already over 50%. Going home in three weeks' time, I will be making fewer selected stops, so need to take more accurate notes - and may put up a synopsis thread about it, if relevant.
Best discovery: IECharge stations All have only about 4 chargers at 320 or 160 kW CCS for 0.30 €/kWh (through their app and good map - totally simple). There aren't hundreds around yet - but expanding fast. They are generally located a few km off the motorways, out in the wilds, often just by a tiny side-road, and usually empty. Downside is no other facilities at all, so hope they don't get trashed through bad French roadside habits!