i updated my previous comment - I forgot - udemy even on kodi has the same VMP issue.
No way around it unfortunately. The container won't help you either
You (and anyone else trying to use Udemy) contacting them and telling them to turn off VMP is the only solution
and may actually work. It's worked on other providers (eg. HBO Max)
(Also, just pushed updates to the udemy add-on that fixes the login issue that i noticed when testing the VMP issue)
they probably are testing with services that still allow the old widevine library (eg. Netflix & Disney+)
That container is using WV version 4.10.1610.6.
Nearly everywhere else has been using the newer 4.10.1679.0 which has definitely has been revoked by most providers.
Solution here: viewtopic.php?f=63&t=318893#p1910100
works fine without the need for containers.
(the official solution will be similar to this. replacing glibc with a patched version and then updating the widevine cdm)
Udemy and any other providers who force VMP won't work - but never have worked on Linux (no difference)