So linux users are expected to redownload the whole game every time we want to update the game with a new patch
That's the way it's been for 99% of Linux games here for years. For a short while, patches were made, but I guess they decided it wasn't worth it for their what? 5 Linux customers? Oh well. I'm used to it by now, to the point where I don't even bother looking for patches any more, even for Windows games.
With this game, they don't even bother providing the "premium_digital_copy" extra that is supposed to come with the Imperial Edition for Linux (but it's there for Mac and Windows, of course). Opening a ticket with support is too much trouble to fix it, especially since I'm probably the only one in the world affected.