Currently the fixlets provided by HCL for patching the Office 2021 LTSC Perpetual Volume-licensed ( Update channel: perpetualvl2021 ) will only run the Microsoft Office built-in updater. This causes each individual endpoint to individually pull the content required via their WAN links. Also if you leverage a proxy in your environment, all the Office update URLs will have to be whitelisted for access by the individual endpoints.
The idea below (upvotes appreciated 
) is to ask for an action variant that leverages the BES cache via prefetch statements. This would allow for parity with other Office 2021 content already available (Semi-Annual or Monthly channels) and help protect WAN links at locations by leveraging the BigFix infrastructure.
https://bigfix-ideas.hcltechsw.com/ideas/BFPTCH-I-281
From Microsoft’s documentation providing details about this particular channel type:
“PerpetualVL2021” is the only update channel available for Office LTSC Professional Plus 2021 and Office LTSC Standard 2021. The PerpetualVL2021 update channel is also available for volume licensed versions of Project 2021 and Visio LTSC 2021.
