I have the same problem as well. The Other memory takes so much space to the point where it says “Iphone Storage Full.” and i only have like 5 apps which each one of them take up to 500 something MB. Thats really bad. I hate this problem and no one seems to know or apple tries to find a solution to this problem. It is so frustrating to see how much space that OTHER takes up. I have tried reporting this problem multiple times to different sources but it doesn’t help. I hope this issue figures it out by it self but what is the point in buying a phone that i dont know where that OTHER stuff goes and what even is it.