I always refuse to use their official desktop app, I'm not making an account / scrambling to remember my username / password, for the one time in a blue moon I need docker to evaluate a piece of software.
That must have changed recently, it always asks me to login and I dont keep any images on their registry, that or they present it as a dark pattern where the option to NOT login is non-obvious. Even so, I'll stick to just not using Docker, I never have any use cases for it outside of as I said, evaluating software that requires it for whatever awful reason.