I can see this question has been asked a lot in the community but it seems many of the replies contain links to documents that seem, to me at least, rather opaque.

In almost every article on the subject it states "Canvas does not support file uploads larger than 5 GB." but I thought the upload limit for a student for a submission point was 500MB? In what scenario would a student be uploading a 4GB document, for example?

Does the limit vary depending on what is being uploaded? For example would a PDF with an embedded video still only have a limit of 500MB?

I'm struggling on how to clearly relate upload sizes of files to students, other than, "a single file cannot exceed 500MB" that I think is the case, although not mentioned here? https://community.canvaslms.com/t5/Student-Guide/How-do-I-upload-a-file-as-an-assignment-submission-...