For me, "effortless" is the kind of fluffy drawing I do when I'm trying to pay attention in church so my hands need to be moving to keep me focused without distracting my brain. Angry wolf muzzles, a lot of very detailed eyes with attached noses, disembodied long, thin hands in various poses and occasionally long, thin people -- I'll draw these things without thinking, but it doesn't do much for me; it's just artistic junk food.
When I'm REALLY drawing something, especially for my comic, there's absolutely effort in it! It's more like a really challenging and exciting puzzle that, on a good day, I feel very capable and pumped to solve as the pieces come together, and on a bad day, I feel like I've been erasing numbers out of this sudoku block all day and it's still not lining up. I wouldn't even describe the good days as "effortless," for me -- it's more like the feeling of playing a video game and realising you're winning and you know what you have to do to win.