The main camera lacks an optical image stabilization system (OIS). For videos, Artifical Image Stabilization (AIS) and Electronic Image Stabilization (EIS) should do the trick, but for stills, not having OIS is a disappointment. Even in the Huawei P20 Pro, when you zoom in using 3x or 5x times zoom, the cameras uses AIS alongside OIS, whether in 1x zoom it doesn't use it. I need to see how it works in practice, but having OIS ensures that the camera can capture images at longer exposures, thus improving the low light performance. I'm sure there are plenty of users who really wanted the Honor View 20 to have OIS and will be disappointed to hear that it does not.
Just in comparison, the Huawei Mate 20 Pro does have OIS, but only for its 8MP f/2.4 80mm telephoto rear camera and not the 20MP f/2.2 16mm ultra-wide rear camera. However, there is no need for an OIS for the ultra-wide camera due to its small focal length. To get a sharp image with the 80mm (35mm equivalent) lens, you'll need to choose at 1/80sec shutter speed at least (in most cases) and of course, it reduces also the low light performance when you want to shoot with the zoom lens in low light conditions.