When I tried Affinity last year, I found its printing module undermined detail in the file, while Photoshop did not. And it provided monitor calibration only on the primary monitor, which would have required reconfiguration of my system. My high-end (ish) editing monitor is the second monitor so I can be working an image there while dealing with text-based stuff on the primary monitor.
I also tried On1, but its catalog management annoyed me.
I preferred DxO Photolab, which works in a straightforward manner and provides a lot of decent features.
I do not use software to organize my photos—I do that by how I build folders. Photolab allows that model, and does not require adding photos to a catalog.
I also tried the Pentax cut-down version of SilkyPix, and it has a couple of nice features in terms of inherent lens corrections.
When I put together an Alaska book, I used Photolab to process all the photos, and it did everything I needed with a lot of useful time-saving features. I’m finding that with the Pentax, I’m not needing all the power of Photoshop, or even much in the way of masking and local edits. But I did use Photoshop (I still have the last ownable version installed) for a couple of images where I needed a particular tool.
Where Photoshop has no equal among these other programs is in prepress. I cannot soft-proof with the other programs nearly as flexibly as with Photoshop, and its printer control is still unmatched. When I target those Alaska images for big prints, I will probably end up using Photoshop.
But for preparing images for on-demand printing, Photolab was perfect.
I don’t and never have used Lightroom, but have used Photoshop for about 20 years.
Rick “needing to resume the search for a publisher” Denney