I have been playing Forza for years, and I always used controller. It works fairly well, nice FFB from both triggers if I accelerate too hard or brake locks up.
I have just bought a G920 wheel, and all the FFB are gone. Maybe the question is that is is even a thing a G920 padels that I can have FFB?
You may be able to mod the pedals, but those particular pedals do not have built in rumble. Here is an example of what you’re looking for: ClubSport Pedals V3 | Fanatec You’ll notice under Features, it describes vibration motors for the throttle and brake pedals.
I believe if you turn up the vibration scale setting through the in-game advanced controller options, you will feel more of the ABS in the wheel itself.