Digital Photography Review tested the LG G6's wide angle lens as part of their LG G6 review. This is what they had to say.
"The G6 super-wide-angle camera comes with the same sensor resolution but a slower F2.4 aperture than the main lens. As it is often the case with very wide lenses, it is softer, especially towards the edges of the frame and shows noticeably more distortion.
Image processing is noticeably different compared to the main camera, too. The super-wide-angle appears to apply stronger noise reduction to its images, resulting in softer detail and more smeared luminance noise.
Overall image detail and sharpness of the super-wide-angle are not on the same level as the main camera but it still offers a very convenient and easy way of fitting more of a scene into the frame at the push of a button."
They also said this about an indoor shot.
"Due to the slower lens aperture the camera has to increase sensitivity to ISO 1000 to capture the indoor shot below. Detail is clearly suffering and noise is getting more intrusive but overall this is still a very usable shot, even at larger image sizes."
https://www.dpreview.com/reviews/lg-g6-camera-review/7
It may be convenient to take a shot with the wide angle lens, but it absolutely harms the quality of the image. Something that doesn't happen with a good panorama (aside from things in motion)
There is no reason to use a wide angle lens for video.