How do you get permission to drop files in your wsl2 instance from Windows?

How do you get permission to drop files in your wsl2 instance from Windows?

wsl$Ubuntu-20.04

I tried to drop it in there, but I keep getting: You need permission to perform this action.

I want to drop some files on my C drive to my wsl folder so I can access it from wsl without suffering a performance penalty when I try to run docker from wsl from a folder that’s in my C drive (Windows file system).