> If 2024 was when they crossed that threshold, that feels like a huge jump in EV chargers (almost 50%) in a single year.

EnbW last year increased their fast chargers by 66% in Germany. They are the biggest fast charger operator now in Germany and operate 6000 fast chargers [1]. I often charge there and can confirm that you can find their chargers everywhere and also that they actually work. According to the annual report, they plan to keep this growth up till 2030.

So yes 50% in California seems plausible.

[1]: https://evboosters.com/ev-charging-news/overall-ranking-germ...