A major limiting factor to the height of any building is the capabilities of its passenger lifts.
This is not just related to how long lift ropes can be made before they can no longer safely carry passengers, nor how high a lift shaft can be made before external forces affect its structural rigidity, but also how quickly it can travel whilst safely and comfortably moving passengers.
A tall building cannot have a lift that is too slow, otherwise it would take people too long to go from the bottom of a skyscraper to the top and cause discomfort through confinement. However, going too fast could cause potential issues due to the forces involved.
A content creator and drone enthusiast by the name of The Action Lab showcased this by trying to fly a quadcopter drone in a typical lift.
The result, unsurprisingly, is that the lift hit the floor when it went up, and the ceiling when it went down. Interestingly, this was still the case even when the drone attempted to move in the same direction as the lift itself unless it matched the speed of the lift.
This movement, and the forces involved, will also affect any people in the lift, and this can create some rather unusual sensations. People will tend to feel lighter when travelling down and heavier when travelling up due to changes in air pressure.
Most conventional lifts will move at a high enough speed for this sensation to be potentially noticeable, but not fast enough for it to potentially risk popping an eardrum or causing physical pain. However, as buildings get taller, lifts have to be more technologically advanced to mitigate these issues.
This is one of the main reasons, outside of lift cable technology, why hypothetical space elevators are effectively impossible for passengers without significant advances in pressure and force-mitigation technology.