Dead Link: Apple->About->Support->Specifications...

Where are you seeing Apple > About > Support? Do you mean About this Mac?

Specs are under Resources for me.

If you delete the "&viewlocale=en_US" part from the URL, it loads correctly.

You can send Apple Feedback, here: Product Feedback - Apple

I would imagine the macOS page would be the most suitable.

This was a bug in Catalina and seems not to have been fixed

in Bug Sur.

BTW, I get that very same error on both my late 2013 27" iMac with Catalina and

most recent updates and on my M1 MacBook Air with Big Sur 11.2.