There is an updated pull request by mdkcore0 against master on the void-packages repository

https://github.com/mdkcore0/void-packages update-slack-desktop
https://github.com/void-linux/void-packages/pull/49298

slack-desktop: allow the use of WebRTCPipeWireCapturer flag
Slack seems to [disable screen sharing on Wayland](https://forums.slackcommunity.com/s/question/0D53a00009BSEGACA5/when-will-slack-support-wayland-screen-sharing-does-anyone-have-workarounds-or-hacks-to-make-it-work), this commit allow the use of WebRTCPipeWireCapturer.
Final user still needs to add the flag on the command line to make use of it:
`--enable-features=WebRTCPipeWireCapturer --ozone-platform-hint=auto`.

Note: just tested on Wayland, it would be great if someone tested it on x11 too.

#### Testing the changes
- I tested the changes in this PR: **briefly**

#### Local build testing
- I built this PR locally for my native architecture: x86_64-libc


A patch file from https://github.com/void-linux/void-packages/pull/49298.patch is attached