Those connectors are a fucking bear to plug in though, and you usually have to try 3 times to get the charger-vehicle-payment dance to work.
The connectors themselves aren't usually the cause for the perceived difficulty of plugging in. It's instead the weight and flexibility of the cable. Try this: plug in a CCS connector at Electrify America, and then plug in a CCS connector at ChargePoint. The latter feels much heavier than the former. Yet both are CCS connectors. Even though the former is rated for 350kW and the latter usually only 125kW.
The CCS connector itself doesn't dictate what kind of cables manufacturers use and what kind of cooling. Tesla designs cables with less cooling and they replace them more often; other brands want long-lasting cables with fewer field visits so they add more cooling. And some brands use liquid cooled cables, others simply opt for thicker copper without liquid cooling. All of these have nothing to do with the connector.
Also, some connectors have nasty white plastic, while others have really nice and usable handles.
EVgo and Electrify America routinely fail at the payment-charging stage for me. The Tesla is expecting to get charge as soon as it is plugged in; the charger on the other hand wants me to plug in BEFORE payment, and payment takes FOREVER by the time I open the app, inevitably have to re-log-in (for some reason ChargePoint keeps me log in but the others routinely log me out), forget my password, reset my password, then locate the goddamn charger stall ID zooming in from a map of the US and then have to search some stupid IKEA-like name of the actual charge station. By the time I finish this the car has already given up and when the charger catches up to telling the car "hey I have charge now", it's too late.
The real workflow should be either
(a) tap a EMV credit card, approved, THEN plug in, no app needed
OR
(b) scan a QR code, Google/Apple Pay, THEN plug in, no login needed
The charger should facilitate immediately delivering charge as soon as it's plugged in to the car.
Google Maps has this information for the ESB network in Ireland. It even shows which connections are currently being used, and which are out of order. Next step is to show information on the current in-use plugs, like when the session started. On the ESB app this information is available and it helps to estimate when a point might become available, if there is congestion.