How do I download maps on mac?

I can’t seem to find out where to put my addons. I tried search, but ‘Mac’ is to short a term.

Isn’t there just an addon folder?

throw MAC away and get a PC with windows.

Googling “Garrysmod mac addons” has this steam forum thread, where one of the replies explains exactly where to put them.

Library/Application Support/Steam/Steamapps/Your username here/Garrysmod/Garrysmod/
Also, if it’s a map, install it in Garrysmod/Garrysmod/Maps, unless it’s one of those few maps than come packed as an addon. If you can’t find the Steam directory, just search for it in Finder.