I tried to run SS Remastered through Wine and almost everything works, except the number keys to quickly switch hotbar.
I could walk, look around, shoot, etc. switch hotbar with mouse whel, but pressing keys got nothiong.

I've tried changing keyboard layouts but that didn't do anything. Any ideas or workaround?

Ok, so what I needed to do was to set my top Keyboard layout as one with numbers not special symbols.