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

In the last few days, I noticed the "picker" modal used by the Hero and Quick Links visually changed.  I didn't think anything of it at first until I realized the Hero web part was no longer allowing me to select libraries or folders to serve as the link.  This was using the "Site" blade, which appropriately shows all the libraries and lets me drill into each and see the contents, but the ability to select a library or folder doesn't work.  To make matters much worse, the "From a link" blade doesn't work either.  "From a link" now seems to have a new validation component, so when I attempt to paste in a library or folder URL (i.e. https://tenant.sharepoint.com/sites/HR/Benefits) it detects that it's a SharePoint resource and displays a folder for me to select before I'm allowed to commit it - problem is, I still can't select this.  I've tried pointing to the .aspx page that correlates to a library/folder view - doesn't work.  I tried creating a Link in the library/folder that points to itself - I can't select these either.

The Quick Links web part, on the other hand, does allow me to select these - same exact UI but allows for selecting libraries and folders.  This does work for folders, but does not work for libraries.  It visually looks like it works for libraries, but when you save the change is not really committed.

I'm genuinely surprised to not have found this issue reported elsewhere so far.  I assume this has to be a bug and hope it's fixed soon - allowing your most popular web parts to link to the root of content in your own platform is one of the most basic feature requirements and for this to break and not be noticed is pretty alarming.