Where should I give feedback about the new Blender 2.80? Where can I give feedback about the Blender 2.80 beta? Right now I am testing it and I would like to give my feedback, because it is suggested I should do so on blender.org website.
You should look for that information on the same website - blender.org. There are links to developer forums on the download page at the bottom including this one: https://devtalk.blender.org/ There is a section called User Feedback in it: