I spent at least 30 minutes to try to find the article I've read long time ago about this specific VSS quirk and why it's never been fixed. But I couldn't find it again.

I found this knowledge base from Acronis instead.
Symptoms You have created a backup with VSS enabled. You have restored the backup. Windows Update history is not available. Cause This is the by design behavior of a Windows operating system: Windows Updates history is removed from a backup with enabled VSS. Solution We cannot change Windows by...
kb.acronis.com