The ultra wide is great in day light or bright areas but in dark rooms or at night I find it’s the inferior camera of the 3. I try to not use it at all in dark settings. Here’s a comparison between the three in a movie auditorium ( before even the trailers so no worry about annoying people lol)
the fix or work around for the UWA camera in darker locations is an app call Nightcap. You will need a tripod or mini tripod to take long exposures. It never over exposes, it just stacks a lot of images for a noise free shot. I usually take up to 30 seconds with it and then process that final image and sharpen it. If you don’t mind using a tabletop tripod, it’s a great app.