Perhaps I should.
The CGO-4 on the 920 Plus (that distinction was deliberate, I don't know how it all works with the 920) takes VERY good pictures, it's just establishing your are taking a good picture or a so-so picture is a bit difficult without a histogram. As the CGO-4 permits shooting 16/9, 4/3, 3/2, and 1/1 you have a lot of options. Highest resolution is in 4/3. Toss in even more by having the options of changing shutter, ISO, WB, and exposure compensation, manual or auto focus. There's also different lens options that provide even more flexibility and quality. But the ST-16 screen does not reflect image alterations with changes in the camera settings as well as it does for video. There's also what seems to be a modified Panasonic/Lumix RW-2 codec used for raw photography, which can be difficult to deal with. My Windows 10 machine does not want to recognize the RW-2 codec unless there is some other program associated with it. None of my Windows programs will open an RW-2 file and others have indicated similar problems. It requires "after market" processing programs to open one, although Microsoft's Photoscape will open one.
It's not that a CGO-4 won't shoot truly great photos, it's just that using photo mode is more difficult (for me) to master than it needs to be. Bracketing is, as always, the best way to assure you've captured what you what captured but we are dealing with a camera that is airborne and time spent bracketing is time depleted from a flight battery. With the video options available with the CGO-4 provides (mov, mp4, mp4-LPCM) along with bit rates up to 200 I just find it easier to run video and pull screen grabs from decent video processing programs. Your skill in still photography could be a lot better than mine and using the still settings may work out a lot better for you than they do for me. BTW, shooting with the mov format makes for nicer imagery. Convert to mp4 after processing if you wish.