@Ernani Ancheta, Thanks for posting in Q&A. To see if there's any method to track how KB5015684 (22H2 Feature update) was installed?? I think you need to contact windows update support to see if it can be recorded in window update logs.
From Intune side, you can check if any windows update ring policy or Feature update policy deployed to this device.
https://video2.skills-academy.com/en-us/mem/intune/protect/windows-10-update-rings
https://video2.skills-academy.com/en-us/mem/intune/protect/windows-10-feature-updates
If yes, we can get the policy configuration to do further analysis.
Hope it can help.
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