Yeah they are a thing but not always fitted when they should be.
that’s why I asked about factory rims. After market ones need rings to center them on the hub and not have the wheel studs take the load
like @Dre suggested swap the wheels to the back and see if the problem shifts as well. Then you can see if it’s wheels or the car.
@Pappu1 Mine would go super lean and then creep rich over the period of about a minute after turning the ignition on. Turned out to be a bad earth.. the ground wire had come out of the plug.