EU passes law to blanket highways with fast EV chargers by 2025::The chargers must be placed every 60km (37mi) and allow ad-hoc payment by card or contactless device without subscriptions.
Yeah, the charging curve is very tilted. From 0-20%, a Tesla will do 250+ kW, so that only takes a couple of minutes. Then the power slowly tapers off, so your typical motorway charging session will be from 6 % to 70 %, and take around 22 minutes.
Such a charging session will typically yield another 2-2.5 hours of driving at 120 km/h, depending on model and conditions.
I highly recommend abetterrouteplanner if you want to play around with very accurate travel planning for almost any EV on the market.