> Everyone. CCS cars can charge on all CCS chargers on all charging networks, including Tesla's charging network. That's the advantage of a common standard:

I don't know about the situation in the US, but in Europe v2 and v3 superchargers support CCS as well, as do Model 3 and Model Y out of the factory. For the Model S and Model X there is an adapter available, allowing them to use CCS as well.

https://www.tesla.com/en_GB/support/supercharger#ccs contains some additional information regarding CCS support.