I think to due piracy concerns on Udemy, most instructors have blocked/stopped the ability to d/l videos. You'll see a grey'd out Download for each video. Attachments such as scripts, pdfs, docs, txt, etc. can still be d/l.
Also with the newest widevine, the older "plugins" don't work anymore (as of 12/31/21).
I've read that if you sign up for a Personal Plan or Professional plan"trial". Then you should be able to d/l what you want for length of trial (7days). Thus Corporate should be the same...one would assume.
If anyone knows a way, then by all means. I am definitely not a subject matter expert on this topic.
If possible to d/, then request list should be ranked by most requests imo. Just my 2 cents.
Time to shovel more snow!!!