Sasuke will have a hard time using his Rinnegan

[Math42]

Why??

Well as u have seen in the movie...

Sasukes hair blocks his left eye

U cant use rinnegan when something's blocking the field of vision of the eye because its not Byakugan

Otherwise he,madara,kaguya,pain etc could have used it with their eyes closed

So in order to use it he will need the winds help to lift his hair up to use the rinnegan or cut the hair

But it seems he doesn't wanna cut it

Kaguya does not possess a Rinnegan, and Sasuke utilized Preta Path with his left eye closed.