well since ive been inactive for half a year now, be gentle
we can see that in this chapter that Sasuke still doesnt have his left arm, pretty sure they can just use the (hashirama?) cells the recreate it. So he still hasnt came back from when he left.
he can cast a technique without saying it and with only one hand.
for people saying that hes an idiot for not charging it with any of his lightning techs even though he just used one on the onion head, think of his past.
He had lived most of his life in seclusion and therefore not very fond of technology. As well as he didnt stick around in Konoha so even if he can charge his phone, he probably wont even notice that hes even have a phone for his first act would be sending a raven, as he had always done.
ChooChoo is a comic relief and will soon be overused. its kishis way of taking a poke on how the kid's generation are like. with the identity crisis and what not.
Salad's past, well thats kind of a given. Dad gone, secret birth. reminds me a lot like Naruto's. Sakura's probably the surrogate mother so in a way, she is her mom.
As I see it, Sasuke is looking for Karin. Maybe something happened during the Last movie (havent seen it so, speculation. also is it even canon?)
As for Naruto and Sasuke's OPness, theyre just reserved. Pretty sure Naruto can sense everyone doesnt matter whether hes in SM. Hes still connected to everyone and especially since hes got the Yin chakra. Sasuke as well. (if someone says they dont due to no longer having the hands therefore the mark, well Sasuke still has the Sharinnegan)
Onion head and stranger, possibly from Itachibase made their way in the manga. in all seriousness though, Onion head is using Obito's fighting style. Chain and vanish?
Also why cant Bolt be like his sister? Hes too needy. Kishi really likes to make correlations doesnt he? "for nostalgia purposes" maybe.
its an OK chapter for me. its building up to something though something big. This Manga isnt 50 chapters worth if you ask me(someone told me itll only be that long). It can be a totally new arc, if Kishis willing.