Truth is that Naruto's chakra arms are more durable than Sasuke's PS as Naruto chakra arms Countered Kaguya's Gentle Fists
On the other hand, Sasuke's PS got obliterated after getting hit by Kaguya's 1 Gentle Fist.
I am not fanboying Naruto.I am just showing you manga facts.
No not really, Nauto was going all out while Kaguya smiled and each of his hands were still getting oneshotted.
We don't even know what kind of Attack Kaguya used on PS, the size of the blast was far larger than the blast from her chakra arms, so you can't assume that it was "1 gentle fist".
No, you are showing scans and making personal interpretations out of them, fact is Susanoo sword cut Meteorites and the sword on nunoboko. Naruto's arms cut Kaguya, so how durable is Kaguya against cutting damage ? We have no idea, thus you can't claim it's better or stronger unless you are being biased.