I have the Huawei mate 20 Pro and have noticed that the video stutters under every resolution and frame rate but is especially noticeable in 4K mode.
This seems to be caused by the video stabilization and is a shame because the picture quality is otherwise excellent.
From reading around it seems to be a problem that people have noticed on other models of Huawei phone, but for some reason seems to have not been picked up by very many of the reviewers online.
The end result is that most video is choppy and unusable if it contains anything but the slightest of movement.
As others have suggested perhaps it would be a good idea to allow users to turn off video stabilization as it appears to be massively over compensating.
It would also be good to know if there are any plans (or if it is even possible) to fix this with a future firmware update so stabilization can be used without causing warped image tearing, stuttering, jittery and jerky motion.
One of the things which drew me to this phone was the still image quality, so it's extremely disappointing that the video quality doesn't measure up. Hopefully something can be done to improve the experience.