I recently purchased the new M1 iPad Pro . I immediately found out some features that are missing from this app compared to the desktop version that would make sense to include for the iPads to improve the workflow.
When using the new Magic keyboard you can't hover over with the track pad/cursor and adjust the given setting by +5 or -5 with the directional arrows on the keyboard.
The other feature that I would find helpful is to be able to isolate the thumbnails when importing the images so you can just see one image for selecting the photos like in Lightroom classic (to check for proper focus and image quality).
When using the Selective Edit tool with the Apple Pencil add an option or function where you can actually see the brush size/brush feather tool so you can see where you're drawing. Ex. Lightroom Desktop version.