Is Hugo good for developing a comprehensive and scalable learning management system, or is it better to look for other alternatives?
If you can build it with only HTML+CSS+JS then it is a good fit for Hugo. Hugo is a static site generator so it outputs just that, static sites.
If you need dynamic features you should look elsewhere.
If you provide a list of features/functions/etc. that your site will need, a more details answer is possible.
Thank you so much