Updating to the latest Slack release provides access to advanced tools not found in 4.29, such as: Slack for Linux (Beta) - Release Notes
Run the downloaded file and follow the prompts to sign into your workspace. For Mac and Linux download slack 4.29
A bug was fixed where huddle invitations failed to specify the originating workspace or channel, making it easier to know where a call was coming from before joining. Updating to the latest Slack release provides access