There are tons of CCS chargers across Europe and growing strong. Basically all new ones are at least 150kW chargers, so there won't be any problems long range as the charging speed of the E-Tron looks pretty great.
Fastned, a dutch charging provider gives it 150kW charge until 80%, 50kW until 98%.
Charging with an Audi e-tron Quattro
Since they give detailed charge rates for various cars, these numbers are probably legit.
For example Jaguar IPace (85kW until 50%, 50kW until 80%):
Charging with a Jaguar I-PACE
Hyundai Ioniq (70kW until 75%, 22kW above 85%):
Charging with Hyundai Ioniq
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