Dear AdamWarecs,
You are wrong. Canvas used to but did not like it. To clarify this even more, I have proof that this is something that The Canvas Team is not really interested in pursuing. Allow me to explain.
On Fall 2021, I successfully shared my new quizzes (Calculus 1 @ California State University Channel Islands) into Share Commons.
That semester I was on sabbatical in Mexico and I imported those new quizzes from Share Commons because I needed them in my course in Mexico at ITAM.
Not only me, but other instructors who were teaching Calculus 1 at the time. also imported them from Share Commons.
For some error perhaps, Canvas figured out that I could and they, egotistically, stopped the sharing. They are not really nice. I sent messages to them, they did not reply. I think that they seem to have some type phobia to mathematics particularly.
Thanks!