Well. today I tried to use the Brush tool for retouching during raw development. Help files left me completely frustrated; this tool to that panel to some tab to some kind of menu and back again… Finally, I imported the raw file into Aperture (limping along on Catalina thanks to Retroactive app) and used the Spot & Patch tool to quickly fix the problem. An important difference is that Aperture's Spot & Patch is found in one adjustment panel. Tools (adjustments, controls) in Affinity Photo seem to be scattered by comparison.
"Overhaul" could mean different things to different people (e.g., I stopped using Photoshop when Aperture 1.5 was released) but I would like to see Affinity Photo's instrumentalities consolidated. Short of that, help files could be improved by showing pictures of items in context, instead of just an icon that leaves the user searching for pieces of the interface, which may vary depending on persona.