There's three separate types of default (or UWP) Windows apps:
1. Removable apps, which can be removed and re-installed from the Store. WU will silently update these apps for you, but no history is logged in updates history.
2. Non-removable apps, which can only be refreshed as part of the Monthly Update. While the parent CU is logged, none of the updated apps will be separately listed.
3. Security Center is a non-removable app, but it's updated separately by WU whenever needed. Because you integrated an extracted Appx version of it, and didn't allow WU to install it, it won't show in WU history. WU history only covers updates that WU itself logged an action for. Self-installed updates using DISM or PS commands don't count.