Chosen Solution
I am replacing a cracked screen on the iPhone 6s (ordered glass screen and the frame no lcd). The back of the glass where the graphics window is has a yellow adhesive or paint or something like that. It looks like it might be able to peel off it moves a little. I don’t really know what it is.
I feel like an idiot now. The yellow backing was just a very neatly placed screen protector on the back of the glass. Thank you