I tried the reverse recently, charging my Model 3 at third party CCS chargers with adapter (and CCS compatibility retrofit). It is bleak out there. The chargers are few and far between, half of them are broken, and even the ones that aren't broken have compatibility issues so they may not work anyway. The required apps are unreliable and annoying. I remember 5+ years ago Superchargers were a lot less common and also…
Where are you that the CCS chargers are few and far between? While I agree it's annoying to have to potentially use multiple apps if you aren't in a car that has a consolidation play (like fordpass), there are far more CCS chargers in the states I've visited than Tesla counterparts.
With gas station chains like Pilot, 7-eleven, Wawa, Circle-K, and others building out their own networks, and Tesla firing basically their entire charging network staff, non-Tesla chargers will only continue to grow at a faster pace than what Tesla has to offer. At least we've standardized on J3400 plugs so we can (hopefully) move away from the game of "do you have the right adapter"?