Pretty much this.no only sasuke can since his rinnegan was evolved from his MS
Susanoo allowed him to absorb Mei's lava style at the kage summit. And since he's in a lava world it magnified his rinnegan so he can use amaterasu without sharingan.
Of course it can't.
Uchiha activating the rinnegan doesn't mean they lose all sharingan powers that eye once had.
not sure why it took so long for someone to say it.sasuke rinnegan has Sharingan powers
Why isn't he bleeding.