I am using Gnome-shell on arch linux. I use Alt+Tab frequently to switch between applications. Recently, I have assigned the language switcher to Left Alt+Left shift. This breaks Alt+Shift+Tab to switch application backwards, while this doesn't happen in windows. Any suggestions to fix this?
Not a fix but a workaround... you have to go to "Layout Options", open "Miscellaneous compatibility options" and check "Shift cancels Caps Lock". Now your Alt+Shift+Tab will work as expected but your language switcher will be triggered by Left Shift+Alt not by Alt+Left Shift. It's practically the same key combo only the key pressing order is different.