The Weibo post from leaker Instant Digital
The FaceTime camera on the iPad Air (2022) is currently located on the top of the tablet when it is held in portrait mode. This means that when the tablet is held in landscape, the FaceTime camera is on the side and explains why Apple is making the change.
On the other hand, this will be an issue for the iPad Air (2024) since both units in that series will support the second and third-gen Apple Pencil accessories.
The iPad Air (2024) series will also support Center Stage just as the FaceTime camera on the fifth-generation iPad Air (2022) did. With Center Stage, the camera uses AI to automatically keep you and someone standing next to you in the frame even when you are both moving around during a FaceTime call.