Thanks @milindmore22 . Yes, it does help.
We’ve been using the AMP plugin for years now. I finally gained access to our GSC today and checked the same thing you recommended.
For the url’s i tested, they’re all unindexed because “Page is not indexed: Alternative page with proper canonical tag”. The non-AMP url’s are indexed so i’m still not sure why our articles no longer appear under Google News.
Thanks for your help.