Putting it here in case someone needs it.
Issue: Slack no longer shows tray icon
Background: I user Slack and follow the usual workaround in order
to install the deb package:
- download libindicator3-7
- download libappindicator3-1
- install slack-desktop
Problem: Started maybe a month or so ago - the tray icon doesn't show anymore. The app installs but no tray icon
Solution: use libayatana-appindicator3-1 instead of
libappindicator3-1 by unpacking the slack deb file.
There's a script on github that does this exactly.