How did Jinx lose her right leg and arm?

Well, it's Jinx. My guess would be on uncontrolled explosions.

No need to explain, she likes to make stuff explode. It's probably similar to Junkrat in Overwatch. Replacing body parts should be no problem that distant in the future

Fashionable asymmetry, staple of generic character design. It's like all the people with one armour pad on their shoulder for some reason.

is this true? i checked character model and profile photo and nothing seems different with her leg and arm

I mean she is jinx..