There is an updated pull request by thomas-t-w against master on the void-packages repository

https://github.com/thomas-t-w/void-packages monitor
https://github.com/void-linux/void-packages/pull/12144

mate-system-monitor: update to 1.22.1.


A patch file from https://github.com/void-linux/void-packages/pull/12144.patch is attached