[Windtear]

Technically RB stick is intended input for evade and lunge, but with the ultra moronic control layout and the massive input delay, you can always have random evade/lunge via left stick even when you never layed a finger on RB stick or never intended to do a lunge.

So yeah, technically LB can evade too, it's just you don't have any command over it, it will execute whenever the moronic animation system decide to automatically override players' command against your will at random times which happens pretty often. One can argue LB stick does evade too.