Yeah, i'm just recently trying to avoid windows and wanted to look how various games work with linux (including proton or pure wine).
It works surprisingly good so far. Basically everything i tried up to now just runs fine, except games that require EAC. I couldn't even tell games with with proton are running significantly slower.
But switching the mouse wheel in linux is not a real solution since it seems to be a unity issue. So every non-unity game still has it the opposite. And i really don't want to change my mouse config depending on if the game i want to play currently is using unity or something else.
But ok, i can deal with it so far. Still looking forward to it being fixed.
I play exclusively on Linux and have had the scrolling issue for several alphas. It worked in A16 which is the first one I tried, but somewhere along the way (A17/A18ish) the scrolling was broken.
What I've done to make it more bearable is reconfigure the tool belt scrolling. This way at least switching weapons in the heat of battle, works as expected.
The downside is that this removes the zoom in/out from weapon scopes, so for snipers it might be better to remap the zooming instead.
And still, after doing this remapping, the scrolling in trader inventories/lists etc. still requires you to scroll up, to go to page 2/go down in the list.
Same issue with map zooming - you have to do it the "wrong" way to get the desired result.
I also tried the "Invert mouse" functionality mentioned previously in this post, but it doesn't affect the scrolling. That setting only affects mouse movement, i.e. move the mouse away from you, and you'll look at the ground.
So I'm also very much looking forward to A20 finally fixing this issue.