Hello, we have tested this on our end but did not find any issues.
These are the notes provided by our QA: can you confirm?

What the player is experiencing is presumably caused by UI that we are using for keybinds. When user binds the desired button for shifting gear up/down he must open the "advanced keybindings" (natively TAB while hovering over the desired keybind in settings) and select 'Click' as action prefix - that way no matter how long the press is the game will detect it only as simple press and will prevent issues described by the user.

Changing it to "click" after assigning it did fix this issue. But I think that you'd better make this the default for this action, because nobody in their right mind will expect to have to fix this themselves unless prompted explicitly. This is outside of what is expected because other games don´t use a modal like the advanced assignment right off the bat. It is usually reserved for changing curves etc. So preferably you start adding default profiles for all problematic actions, which is probably all of the joystick ones. I also used click for the assignment of change weapon, as reported in point 2 of #AREXP-454 , and it also fixed that.

I think that the game needs to acommodate the behaviour common in other games or explain the difference explicitly inside the game, as breaking expectations like this is very confusing.