No offense intended ....I'm photography enthusiasm. When ever using ultra , my first thought jump into edge distortion and the correction needed after that in photo editing....
Thinking back....be it what phone, I have hardly use more than 10 time in UW photography .....I rather move a few steps back to compensate.
But gotta admit ...I do change phone frequently.
thanks for sharing

but nowadays with software and AI, those edge distortion can be easily corrected.
thing is, usually when people use UW lens, it's to capture more 'space' - faces, landscapes, etc. having more pixels allow the images to be zoom in with more details and less pixelation effect, or blurring.
I haven't come across a flagship phone these days with only 8mp ultra wide. It's like going back 10 years? 20 years?
last time Huawei used to have a special 12mp monochrome lens which serves a special purpose for just black/white photos. 12mp! not 8mp.
Most reviews would suggest at least 12mp for modern day mobile photography.