Looking at the Slack .deb I see that there isn't even any info on what the license is for Slack, so distros couldn't distribute it even in their non-free archiv

Looking at the Slack .deb I see that there isn't even any info on what the license is for Slack, so distros couldn't distribute it even in their non-free archives. https://downloads.slack-edge.com/releases/linux/4.28.171/prod/x64/slack-desktop-4.28.171-amd64.deb https://downloads.slack-edge.com/releases/linux/4.28.171/pro... Not only that, but it contains ffmpeg and other LGPL stuff without distributing source code, which seems like an LGPL license violation to me.