Anecdata: I regularly stop at a UK motorway services (Hopwood Park, M42) where there are 16 superchargers (and have been for several years) and even on the busiest days there’s always been a couple free.

Meanwhile over at the “public” “fast” chargers (4 of them) there’s regular contention, to the point of heated verbal disagreements between drivers one busy day this summer.

(I thankfully drive a Prius which can make the entire 250 mile trip on half a tank of petrol.)

Tesla have their own contention problems here and there, but I consider the supercharger network a definite competitive advantage over other EVs.