Why can't I do anything else with this watch

Hi, I'm kinda new to this vivomove style watch. I just want to ask why can't this watch can't install 3rd party app on it. Even my old mi band 4 can play t rex run :) Is there any way for me to have access to my watch software. Or is there a way so I can design and use my watch face in this vivo style, instead of some watch faces already there in the app. I knew that there's no way for connect IQ. But I think I can do something more interesting with this watch which has 2 color screen. 

PS: This is not related but I wish there is a way so I can change the shortcut menu in this watch too.