i’d like to add a counter point to your classification, respectfully: i felt like the comment implies that morality can be subjective (mainstream), but ethics is objective.
my point would be ethics is also subjective, and thus morality and ethics can be used interchangeably. in german, they are! (Ethik und Moral/Moralität)
My subjective definition of ethics is that they're objective :)
Of course if you define both words to be the same thing to the point where they're interchangeable then the meanings change, but that's not what those words mean to me. I don't define ethics to be a socially held belief.
What do words even mean?
Edit: I don't know why I'm arguing with you, I have no strongly held belief and don't care about this at all.
my point would be ethics is also subjective, and thus morality and ethics can be used interchangeably. in german, they are! (Ethik und Moral/Moralität)