You're comparing household name with household name. Commercial software has a marketing budget, but free software spreads more by word-of-mouth (or association with a big and processional organisation like GNU), so that's an apples-to-oranges comparison. GIMP isn't very good, as free software image editors go: Script-Fu, plugins, or UI familiarity are basically the only reasons to choose it these days.
I'm curious as to which ones they do not have compared to Adobe products.
The only one I can think of is proper material layer painting in Blender, you can get there with addons but haven't found one that's as good. Genuinely the only thing that I miss, and I do this full time.
Darktable has some features that RawTherapee doesn't, and vice versa. I imagine that some of that stuff isn't in the Adobe software. (I've heard that recent versions of Lightroom have removed local file management support, which both these programs still have – though don't quote me on that.)
You're comparing household name with household name. Commercial software has a marketing budget, but free software spreads more by word-of-mouth (or association with a big and processional organisation like GNU), so that's an apples-to-oranges comparison. GIMP isn't very good, as free software image editors go: Script-Fu, plugins, or UI familiarity are basically the only reasons to choose it these days.