Video won’t upload to iCloud - size limit???

I created a series of short videos for an event. I can’t seem to upload these to my iCloud. I have the 2TB iCloud and have only used 220 GB of that… there should be ample space, and I am getting the message that there is a limit of 10GB per upload.

What do I do to get my videos (maximum 20GB each) to upload?

I prefer not to cut them into smaller pieces.

(iMac, macOS Catalina 10.15.7)