Canvas Studio is a way for professors and students to interact and collaborate in different ways. Studio allows students and professors to interact with one another by means of audio and video media.
This is a screenshot of Canvas Studio in action! As you can see in the screenshot, studio allows both students and instructors to comment directly on the time of the video/media itself.
These comments do include the time and date it was posted. Replies can be posted to comments made within the media's timeline. You can use Canvas Studio within the RCE (Rich Content Editor). As you can imagine this can be used within assignments, discussions, and pages.