I've have that problem trying to download anything from Mike's google-drive & recently IIRC without regard to which web-browser I was using: endless 'spinner' or silence and if I click the browser's download icon which should show progress it reads "Canceled".
I think it this phenomena has to do with the privacy and security add-ons being used. I found the same solution as you:
Select Download All
When that's done, google AFAICT zipps the package. And the browsers then find no objection to handling it.
Thanks mikesir. The loop I had warned about (unable to scan files over x-mb) I guess once they zip it they have also scanned it.
Got it running now on the laptop, (2nd graders at the local school want to see and learn from our Greenhouse) so we are working to make that available to them.