There is a new pull request by Johnnynator against master on the void-packages repository

https://github.com/Johnnynator/void-packages mattermost-desktop
https://github.com/void-linux/void-packages/pull/24332

mattermost-desktop: use system provided electron
@ashpooljh Can you test this?

A patch file from https://github.com/void-linux/void-packages/pull/24332.patch is attached