It looks like you’re looking for a installer matching a specific version/build from the C2R (Click-to-Run) branch.
Included stability fixes for Project and Skype for Business, addressing issues where the applications would hang during specific conferencing or baseline tasks. Re-Downloading and Installing Office 2016
This build reportedly fixed issues with Gmail synchronization, ensuring all messages loaded correctly when added as an "Other" mail account. It looks like you’re looking for a installer
To confirm that your system successfully processed the target installation, open any standalone application within the productivity environment (such as Microsoft Word): September 5, 2017, update for Office 2016 (KB4011099)
It provides a reliable version of Office 2016 without the UI changes or feature updates introduced in later C2R builds. To confirm that your system successfully processed the
End of support for Office 2016 and Office 2019 | Microsoft Support
Many organizations freeze their software versions at specific builds to ensure consistency across all user machines. But Elias knew better
To the rest of the IT department, it was a relic—a ghost of the "Click-to-Run" (C2R) era that should have been patched out years ago. But Elias knew better. In the deep architecture of the company’s oldest proprietary database, this specific build was the only key that still fit the lock.
Deploying Microsoft Office 2016 Version 1802 (Build 16.0.9029.2167) C2R