I'm developing on Linux (Ubuntu 20.04) with Unity 2020.1.6f1. When I build to WebGL the result is about 75 MB, but when I build to Linux, Mac or Windows (with LZ4HC compression enabled) the result is over 400 MB. Where does this huge difference come from? The resulting WebGL build runs fine in Chrome; every asset is where I expect it, at the quality I expect it. I even uploaded the WebGL build to itch.io and it runs fine there as well. How come the WebGL build is so much smaller than the PC builds? What can be done about the PC build being that big? My Assets folder is about 270 MB in size - so why is my WebGL build not even half the size of that?