alt Hacker NewsNo.
Try harder.
Gourmand still, in large parts of the English speaking world, carries large overtones of excessive eating under the guise of quality eating.
If I were to make a guess, I suspect that in your part of the world some of the French persuasion made frequent reference to those that overstack their plates as gourmands and it has since locally become synonymous with gourmet as the troll escaped them.
American here, only every heard it meaning someone who likes fancy food.
Never heard of it being a fat person, except in so far as the word is old fashioned enough to conjure the image of a fancy dressed fat person eating fancy food.