I am not sure what you are getting at… I use the settings that I post across the board for pretty much every game I play AND every car I use… so for me they are universal… Granted the Sim I play most is iRacing so I don’t have a Dedicated Assetto Setting. but the main thing is that you will need to turn the Gain down to your usable force in Assetto as they run their feedback system on a Baseline-Gain model rather than the Attenuation Window model that iRacing uses.
The Reason for the filters is NOT to tune the car and the feel of a “certain car” (though some do this and have per setting cars). The reason for the filtering is to eliminate or neutralize the Feedback “coloring” that comes with the hardware of the steering device and its software… This “coloring” is present in all wheels and affects the way things feel, hence why a Fanatic DD feels much different than a SC2 Pro, which feels different than a VRS DFP. It is NOT due to the feedback coming from the game as the games know nothing about the wheelbase you are using.
In an ideal world the Feedback device filtering would be controlled by the game to give a consistent “feel” to all devices, However, this is virtually impossible to do without the game having direct knowledge of every piece of hardware out there AND staff to be able to tune them to achieve the same feel. Direct Input Filters do allow the sim some active control over filtering but again intensity of those effects are controlled by the user because again the game knows nothing of the wheel you are using so one wheel may need the effect while another does not in order to overcome its own – again – “coloring” of the signal.
The End Goal of filtering is to filter out the “coloring” which gives your wheel a consistent baseline for recreation of the game output… IF correct or close to correct you will never have to change your wheel settings as what you get from the Game will be what is intended by the Digital Model of the car used.
When you do use NO filters you are basically baselining your setup at what the wheel dictates that Feedback should “feel” like which from my experience (which is extensive) is not a realistic car feel but generally offers up a hypersensitive active feel which is not very realistic in nature and can lead to some feedback issues when the sim is trying to make things physically realistic. (such as return weighting of the wheel and sensitivity to road changes).
Feel is a personal preference and it should be set where it feels most comfortable to the user at hand… But the understanding that what you are getting in most cases when NOT using proper filtering is generally covering up a lot of subtle details in the feedback which DD wheels are capable of providing when tuned to attempt to be as true to sim output as possible.
And NO I am not saying it is easy to set the filtering properly and it takes understanding the filters and the effects that each has on the way the wheel performs as well as having some degree of real world racing and high performance driving experience (on track) in different cars under your belt so you can have a feel baseline for what the feedback is realistically attempting to recreate through the wheel AND you also have to have the distinct ability to direct what you are feeling and what you need to, or should be, feeling and then HOPE the device has the filtering ability to get you there.