PUBG has various version's like global version for all worldwide players, Korean version specially for Korean
This is the main version of Pubg which is available for everyone all around the world
This version is also a different version of Pubg with similar maps. But you can see many skins and in game product's different from global version
Taiwan version is one more another version which is made for specific region. This version is also similar to the Global version except some in game skins.