Windows Update catalog broken due to strange certificate errors

No results via Twitter/Google/HN so figured I'd check with y'all.

I went to download the December W10 update, specifically: https://www.bleepingcomputer.com/news/microsoft/windows-10-cumulative-updates-kb4592449-and-kb4592438-released/

The direct download link for x64 20H2 is here: https://download.windowsupdate.com/d/msdownload/update/software/secu/2020/12/windows10.0-kb4592438-x64_b6914251264f8f973c3f82f99b894935f33c38e6.msu

A Chrome privacy warning popped up to my surprise. I double checked the links etc. Tried again and same. The certificate showed as issued to .vo.msecnd.net. I tried again, this time the cert showed a248.e.akamai.net. Then from another browser, .clo.footprintdns.com.

What the heck is this. I had a colleague confirm from another city. Same results. Any ideas?