Thankfully the dealership I've been dealing with hasn't been giving me any trouble and are willing to figure out this issue (for now).
That being said they first stated the noise was coming from the FAD not disengaging properly so they replaced it. However the vibration/noise was still present...
I’ve been having the exact same vibration/grinding noise explained here. I have 2022 obx nonsas 4 door automatic. The noise began in September ‘23 randomly on a 8hr road trip where it happened 3 times lasting no more than 10 minutes at a time. After that trip it would happen pretty infrequently...