When Sasuke first awakened his Rinnegan and was new, he only could teleport 3 times and then needs to recharge and he had range limit.
And he couldn't open teleport to different dimensions and places, but look at this:
When Obito opened a dimensional portal Sasuke was able to teleport with his ameno between dimensions even when the portal was small.
Now that adult Sasuke can do the same as Obito, he could make a really small portal that can't be seen to any place or dimension and then use ameno to cross.
Syncing his ameno and his portal jutsu like that makes his ameno just like FTG, able to teleport anywhere but without needing to mark the place.
So if he wanted to kill for example Naruto, he just instantly teleports him to Kaguya's lava dimension and leavs him there to die.
Lord Sasuke >>>>>>>>>>>>>>>>>>>>>> your fodder fav.
And he couldn't open teleport to different dimensions and places, but look at this:
You must be registered for see images
You must be registered for see images
When Obito opened a dimensional portal Sasuke was able to teleport with his ameno between dimensions even when the portal was small.
Now that adult Sasuke can do the same as Obito, he could make a really small portal that can't be seen to any place or dimension and then use ameno to cross.
Syncing his ameno and his portal jutsu like that makes his ameno just like FTG, able to teleport anywhere but without needing to mark the place.
So if he wanted to kill for example Naruto, he just instantly teleports him to Kaguya's lava dimension and leavs him there to die.
Lord Sasuke >>>>>>>>>>>>>>>>>>>>>> your fodder fav.