Here are 3 photos.
1. RAW processed with C1 V5.1, which does not correct the distortion based on the available EXIF data. Therefore this is the actual RAW photo. This type of distortion takes a long time to correct in PS,
2. JPG from in-camera conversion. Note that most of the unique distortion is corrected in the camera. But as expected the sides are cropped. (much more than I had assumed).
3. Finally, the same photo converted with DPP, with additional distortion correction. Now it looks fine. (colors are different, I didn't correct these differences).
This is done as expected mostly on the WA side. I had noticed and reported some unique distortions in my street photos in the past, because I was working wiyh C1, which is my usual converter.
Here are the photos: