Hi folks!

So I just picked up Rogue Squadron and Shadows of the Empire. While Rogue Squadron has an option in the menu to disable force feedback, I have yet to find the same option in Shadows. Does anyone know how to disable it?

The launcher has some options on the right hand side of the window:

Enable Fog
CD Audio
Force No Alpha
Direct Movie Blit
Movie Text
Force Feedback Shots

Does this give you the option you are looking for?

Force Feedback Shots affects gunfire only. Turned on, force feedback will kick in every time you shoot. Turning it off disables this, but not force feedback everywhere else.

I want the force feedback, I enabled it but it's not working. I use a XB1 controller.

It's force feedback, not vibration or rumble, it's a system invented to make flightsims more realistic by having the stick resist your movements depending on the situation.
Nowadays it's completely abandoned since it seems it screwed up with the durability of the sticks that had it.