Upvoting you, because I actually use Gimp. While it has its headaches, for photo editing it's still the best after Photoshop.

(Yes, still better than Krita).

But this is all a digression, as Lightroom/Darktable are not Photoshop/Gimp replacements. Not even the same category.

> still better than Krita

??? Krita is painting/raster image creation software, why would you use it for photo editing?