This a constant subject I see in online discussion. Their a disturbing amount of people claiming adult Naruto doesn't have six path sage mode because Naruto lost it after the kaguya fight . When I did help them understand Adult Naruto does still have. They counter with dumb argument like ;

The truth seeking orb ( Naruto can't regenerate them since he lack yin-yang release. You can even see him slowly losing them even in the period were he " had six path").

The sun and moon seal gave Naruto their six path power even though that not purpose of it.

Another his the feature ( At this point your not even trying.)

He isn't the jinchuriki of all nine bijuu or his six path ninjutsu anymore. Against delta he used lava released which he obtain after gaining six path, flew during the last, In the Boruto anime his shown talking to the other bijuu and lastly the novels as an entire plotline spawn off Naruto getting sick due to his six path powers and later Shikamaru confirmed he as it as long he has access to the other bijuu chakra which a Boruto episode shown he still does.

If your wondering this is six path sage mode:

These are just kurama influence added on top of it.

Lastly, Naruto the only confirmed user of six path sage mode. Hagaromo, Kaguya, Juubito and juubidara nope.

I mentioning this since like I said their people that believe Naruto lost his six path powers. I'm tired of hearing this argument.