I see some logic in your point about HDR but as far as panoramas go, it’s really pick the photo you like out of the panorama (probably one of the center ones but not necessarily), grade it, apply that grade to all the photos in the panorama, export and then stitch.
I’ve been shooting a lot more panoramas since I acquired an iPhone 11 Pro. The camera does all the hard work, including incorporating HDR in the panorama.
I can hardly imagine how much trouble it would be to create HDR panoramas of this quality by hand.
These are close to in-camera versions. I have used DxO PhotoLab (of course) to slightly improve tonality (general direction, higher contrast) and apply FilmPack’s Color Negative Film profile, Agfa Vista 200. I also removed some lens flare.
The originals are 16382 pixels across. For uploading, I’ve resized them to 6000px. To get rid of the phone sensor effect, it would be necessary to resize down to no more than 12000px. I’m not a printing expert so I don’t know how big a high quality print would be possible.
There is one very serious flaw in one of the panoramas. If I planned to more with that image, I’d have to do some very serious work, using another image.
I’m no fan of iPhone photography for RAW work and/or portrait, but for HDR panoramas it’s an extraordinary tool. Panoramas are taken with the main 26mm lens in vertical so the base model iPhone 11 or the new iPhone SE could take exactly the same shots.