There's a merged pull request on the void-packages repository

chromium-widevine: update file structure for 78.0.3904.70
https://github.com/void-linux/void-packages/pull/15810

Description:
With the update to 78.0.3904.70, chromium now expects additional files
and a new file system layout for the widevine component.

This has been tested with Netflix and Amazon Prime.