hmm , on my iPhone 15 pro - 26.1 to 26.2 is almost 8GB. where are you getting your update from ?

So I also tried finder on another MBP and got the same error as before. I also tried booting in safe mode then went into iPhone recovery mode and restored iPhone software and tried again. still no good.
Im wondering if has something to do with apple CDN???
Ive submitted feedback and called apple and talked to senior advisor. No issues like mine reported and she had never seen this before. As for submitting a ticket to engineering - with only 1 issue out of billions of users im not holding my breath there. Ive NEVER gotten a call back from apple re: any ticket ive ever submitted to engineering.
Im hoping maybe someone here will know the answer.