When I select to export via Chrome hosting, it generates all the files needed (I also replace all icons, logo, etc. with my own).
The issue was after uploading, the game launches but chrome browser just displays a black screen with nothing loading (testing on different machine and IP)
But exporting it as chrome but own hosting (mod necessary files after), the game is able to launch properly after upload.
Anyway, hope this helps those trying to chrome web store their games :)