Two things i noticed using the Linux Launcher.

1) The Launcher autopudates itself, but doesnt give any notification or progress bar

As the original launcher didnt work any more i tried to start the game a few times and it failed - the launcher window closed and i thought it was bugged. Checking the log i found out it was downloading a new version in the background which hadnt beedn completed yet

2) For Addon installation it uses the 'interface' folder (small i) - the Windows client uses a 'Interface' folder (capital I)

No problem in windows, but Linux creates a new folder and puts all addons there. So they cannot be found by the client as only the Interface folder is checked