The default Canvas quota for file uploads is 2GB per course. We can increase this on a case-by-case basis, but that need is quite rare. We do have a limit to the amount of data that can be uploaded to the "files" section of Canvas courses as an institution, and need to remain aware of that.
High-res images or huge PPT files are a pain for students to download, so we generally start by advising faculty to downsize/compress their content for the web. Another resource to note is that we do not have a limit on the amount of data that can be shared via UW Google Drive, and faculty also have up to 1TB of data that can be uploaded to Microsoft O365... those can be options for larger files as well.
Video and audio files DO NOT count toward the course quota if they are properly uploaded. Within the Canvas rich content editor (RCE), their is a "Record/Upload Media" button. This has a 500MB/file upload limit for video or audio. However, there is no limit to the number of files that can be uploaded.
If you need video files larger than 500MB uploaded, you have the option of uploading them to Panopto and making them available to the course through the RCE as well (or the Panopto link in the Nav bar). We do not have a limit on the amount of video that can be uploaded to Panopto.
Zoom limits the amount of time we can store content (90 days). Within Canvas, we do not have a limit on the number of videos that can be uploaded via the "record/upload media" button. We can upload as many 500MB files as we want.
Panopto will become an even more important tool over time. However, it does not have a limit on the amount of content that we can upload (literally). We are charged based on "minutes viewed", and it is possible that our bill could go up. The upload can be affected by local internet quality, and home internet connections often do not have the same bandwidth as we see here on campus. However, a "massive" increase in usage by our faculty would represent a very small increase in load on the overall system. There are many universities that use Panopto to a MUCH higher degree than we do already.