No, you motherfucker.
Working with GIMP is like working with two hands tied behind your back. And you don't even have the tools to use with those hands. So you hammer on the problem with your bare knuckles until you crash and fall because the ladder you were working from was designed and made by some libertarian nutjob basement dweller as an afterwork hobby project.
GIMP simply lacks vital workflow features and functions to make it half as useful as photoshop can be. It's not just a matter of re-arranging the icons or remapping the keyboard shotcuts. It's really fundamental stuff like content-aware scaling, quick selection, selection edge refinement and heal brushing which either doesn't exist on GIMP or exists in really bad niggerified versions.
And just like every single other Free™ piece of shitware I had the mispleasure to use, it crashes every 5 minutes (which is only moderately better than Inkscape's 4.5 minutes or Blender's 0.017 microseconds).
Even if we concede that GIMP is a viable alternative to Photoshop (it's not), what other possible Freedumbs software or software bundle can compare with the rest of Adobe's suite? What is the Linux equivalent of Premiere, InDesign, or, god-forbid, After Effects? Moreover, what other software bundle can compete with the sheer productivity-increasing INTEGRATION between all these aforementioned programs?