Lightroom Mobile used to have a before/after button at the top so you could switch between how the image was before you edited and after. This was super useful. It is certainly not where it used to be. Has it gone altogether (why?) or is it moved?
Also, I'm really sorry to see the old Lightroom Mobile presets go. The "detail" and "B&W" presets were super useful. Have they also gone somewhere else or did they fall victim to the dumbing-down of LR?