Thank you for raising this issue, Nelson.
Canvas needs to hear that people are unsatisfied with the grading options. They need to offer options like complete/incomplete for quizzes, complete +, etc (or even design our own drop down choices), they might listen. These are not difficult changes on their end.
Canvas, please look into contract grading! Give us more options for grading!
I have the same question and would love to see this addressed by Canvas. Right now, I'm attempting various work-arounds, but each is clunky, and unfortunately the student-facing portions of my workarounds still emphasize a "points" mentality. Very frustrating.