Device: iPhone 13 Pro
Operating system: iOS 26.6.1
The free cam tends to produce shaking/vibrating/stuttering motion. Refer to video below, of LH A321neo landing in FRA.
posting another link as the original has expired.
In this video you can see the aircraft momentarily stutter and jump (3 seconds in). I believe it is the same issue.
Another example of the vibrating free cam.