GIMP has an odd workflow. I couldn't tell you the amount of times I have done the specific sequence of Select -> Select.Grow -> Select.Border -> (optional)Select.Feather -> manually fill in selection with active brush. If you ran an ellipse select while holding shift for step 1, that would be one of the better ways to draw a circular outline in GIMP lmao

Plus the number of times I've run a 0.5 size Gaussian Blur to soften the noise after running another filter