Hero and Quick Links web parts not supporting library and folder links

M$ Support responded to my ticket earlier in the week.  I repo'd the issue for them and they said they'd refer it to the team.  Yesterday, they sent me an email stating it was still under review.

This morning, in a Reddit thread -

https://www.reddit.com/r/sharepoint/comments/1rffw52/cant_add_document_libraries_to_quick_links_or/ - 

related to this issue, someone posted a potential workaround using the "?web=1" query string parameter using "From a link".  Excitedly, I went to test it out when suddenly, my modal pickers have reverted back to their previous iteration, meaning "From a link" works as it did before.  I don't know if our tenant had our UI changes rolled back as part of my support case, or what's going on, but hopefully that workaround will help anyone still suffering from this issue.