400 kW chargers are being deployed now. Europe's charger infrastructure plan wants 400 kW chargers available on TEN-T (https://en.wikipedia.org/wiki/Trans-European_Transport_Netwo...) as a baseline by 2026, 600 kW by 2028:

https://www.fleeteurope.com/en/new-energies/europe/article/f...

Alpitronic and Kempower make the best chargers.

Alpitronic's 400 kW chargers: https://www.youtube.com/watch?v=T4ZWN_-a2j4

Alpitronic HYC400s are getting to North America: https://www.youtube.com/watch?v=KW3C5yYSENw

Kempower's 400 kW chargers: https://www.youtube.com/watch?v=qR2M5W6saAk

Gravity is deploying 500 kW chargers: https://insideevs.com/news/715496/gravity-charging-highest-p...

A key figure for gauging transition would be the hourly | daily kW equivilent of petrol|gasoline|fossil fuel consumption for a 'medium' city of (say) 1 million population.

How much additional electricity generation is required to replace petrol consumption (asuming electric cars, etc).

Related figures are what tonnages of "final" LFP batteries does that imply, and what tonnages of raw material mined, concentrated, and processed does that imply.

That kind of ballpark gives a feel for scaling out to larger country wide populations (along with variation on personal transport usage by city|country).