@rr-4098, Thanks for posting in Q&A.
From your description, I know some of your Hybrid AD joined devices Stuck in Pending State.
Based on my search, most of the troubleshooting steps need to be done on the device side or require you to be able to connect remotely to the problematic device to do so, even if you want to unenroll device and do the Hybrid Azure AD join again, you need to do it on the problematic device, so try to deal with the problem either on the device side or remotely by connecting to the device following the link you mentioned.
Hope it can help you.
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