Thanks, @Chris_Hofer , it's always good to hear from you!
I didn't realize that Canvas Studio could not be used as a stand-alone product, but that doesn't really change our situation. It is good to know for future planning, though.
I'm trying to find a way for our non-Canvas users to assign YouTube videos to their students. The Canvas Studio YouTube for Education feature seems like it might be a viable solution, but when I suggested it to district leadership, the response I got was "not everyone uses Canvas." So I was doing some experimentation to see if Canvas Studio could be used to produce content that could then then be shared elsewhere (such as Google Classroom). For teacher-produced content, the answer is easy: download as an MP4. But YouTube content can't be downloaded; it can only be linked.
The "Share as a public link" doesn't work because we block YouTube, so the link gets blocked too. The only way to avoid the block is to share the Canvas Studio version.
Regardless, I think I have my answer. It is possible to use Canvas Studio content, even YouTube, with Google Classroom, but the process is so unwieldy that teachers would be better off just using Canvas (which I think they should do anyway, but that's just my opinion).
Thanks again for chiming in!