Why Global and Chinese Ver. has so much different?

Im very new to Unite, start being interested because of the new TFT in chinese version so i play the CH first before GL. I feel so much engagement while playing CH ver, i came there just to play TFT but ended up liking the Moba too. With that excitement i try to play GL ver so i can have a better knowledge since i can read it clearly, buuutt... i don't think i feel the same engagement as the CH ver, 🙄

It is just like very different game even thought the main gameplay was the same. You know its like eating Instant Noodles (GL ver) vs well deserved Ramen or maybe Pasta (CH ver), same noodle but very very different serving.

Normaly i would assume that CH ver has advanced update version of the game, but is it the same case here? i don't see GL ver will be like CH ver in the future since it is just soo many difference.