Have looked into this previously within the GT7 tactile discussion thread.
My own understanding is, the steering wheel is using the same telemetry output from the game as Simhub now has access to.
You will feel sensations based on "Lateral G" being applied with steering, including the amount of steering applied.
However, GT7 also uses "Longitudinal G" with acceleration and deceleration. Therefore the wheels TF responds based on both these operations.
I am not aware that, this wheel uses any FFB-type motors within its rim and that instead, the TF comes from the wheels shaft/motor.
If so, then really any feedback going into the rim is mono, but we've seen already here people commenting or convinced a sensation is L/R. This perception can happen based on the users steering input actions combined with what they see/hear from activity in the game.
The "expansion joints".
Certain surfaces including these, may not generate much in terms of vertical surges regarding the usage of "Road Vibrations". GT7 supports data for each wheel/suspension movement. Simhub lets us apply/use specific tactile units for stereo L/R bumps or front/rear responses.
With my hardware, I can monitor the full 7.1 audio from PS5 and also monitor any generated effects with tactile from Simhub.
To cut to the chase, certain things Simhub brings in tactile that are better than what TF enables or traditional game audio-based tactile offers.
However, to best feel the "expansion joints", we need to use "Game Audio" with tactile. As it does create an "audible response" but did not have that I could tell, much output from the Simhub telemetry activity. To approach this best would be to duplicate the audio output and then be able to boost/modify it with crossover/equalisation or DSP. Doing that helps improve how well a game's audio will work on tactile transducers.
I will be doing a thread in the future sharing my own discoveries with GT7 effects creation and how to get the best tactile immersion from it by combining all possibilities. A small/private discussion group working with effects has been going for a while. I already have my own tested solution that lets me send "Game Audio" as a controlled mix with multi-channel "Simhub Tactile" and send it to any channel I want over multiple transducers/exciters.
Example Of Some Effects Within Simhub / GT7
We can then enjoy:
1. Tactile effects specifically made from the games telemetry and with "Simhub"
2. "Game Audio" based tactile (adapted for better results and over multiple tactile)
3. Logitech G-Pro True Force