Where can I find and download the image file?

I know this place isn't for distributing hackintosh files but I really am confused rn. I can't find any files or the ones i find are kind of oversized (like 13gb) (I am talking about Big sur btw). Is that much of size ok? Can I write that much of data into 8gb's usb (I am asking that cause I want to make sure that I should buy 16gb of usb). Thanks in advance.

submitted by /u/selalepark
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