Canvas Certified Educator exam — is the portfolio submission the hardest part?

I've been teaching with Canvas for about three years and I'm pursuing the CCE certification. The part I'm least clear on is the portfolio component — I understand you need to submit evidence of Canvas use in your actual teaching practice, but the rubric for what counts as strong versus adequate evidence feels vague to me. Has anyone gone through the review recently and can speak to what evaluators are actually looking for?

For the exam itself I feel reasonably prepared. I use Canvas daily so core features — assignments, quizzes, modules, SpeedGrader, discussions — are second nature. But I'm less confident on more advanced features like outcomes alignment, mastery paths, and rubric construction at scale, which I don't use as regularly. The exam reportedly covers those in depth and I'm giving myself four more weeks to get up to speed.

My approach right now is to build out an actual course unit in Canvas using all the features I'm shaky on, both to understand them and to potentially use as portfolio evidence. I'm scoring around 80% on the practice questions I've found, which feels okay but I'd rather be at 88–90% before I sit for it. Anyone who's passed recently — what's the actual exam experience like?