Thanks! Could you tell me more about debug builds?
Viewing post in A Shorter Hike jam comments
As far as I'm aware, they contain extra features and data useful if you want to use an external debugger (like gdb). This can add a few unnecessary MB to the file. You might also want to check out https://www.reddit.com/r/godot/comments/8b67lb/guide_how_to_compress_wasmpck_fil... (for html5)