Students Viewing Videos
If teachers have enabled the setting to "Share all assignment videos with submitters," then when a student is finished recording their video and they click "Submit," they will be able to see the option to "View other submissions" from students that are in their class.
If they click "View other submissions," they'll be brought to the Google Drive folder where they can see videos of other students in their class that have submitted options.
There are many other ways you and your students can view your students' videos, as well!