In Germany all major power providers have their own charging networks and they all suck and are very expensive.
You cannot roll up to a charger and pay, no, you need an app and an account for each charging network. Then there are multiple kinds of subscriptions where each kWh costs more or less depending on the base fee and much more.
All those charging network owners threw a fit when German legislation started requiring new stations to be equipped with a card reader to accept digital payments without apps from July 2023 onwards by the way...