Unable to answer "Who is the operator of this charging station?" – Charging Station – https://osm.org/node/5834571792 via StreetComplete 58.2:

Not sure about the operator. There is also no visible option to authenticate. Maybe it's for free. Couldn't test as we came by Auto Postale

Attached photo(s):
https://westnordost.de/p/240821.jpg