I don't have an IPad, but I do have a phone mount and a dashcam mounted to that bracket right there. The phone mount was originally peel-n-stick until the plastic broke down (snapped the neck) so then I modified it to run a bolt through that center hole.
That being said, that mount gets A LOT of vibration from the wind and general movement of the car. I would NOT recommend putting anything as big as an IPad there. If my phone mount broke just holding my Samsung S9 cell phone, I could not imagine what it would do with the weight of a tablet.
Other people have made mounts that go right over the stereo area MiM or mount lower on the center console.