Welcome to the forum. Your QRC looks a little blurry, but it seems that they are working on what is a standard for that
It looks within specs of 1/4". One thing you could do is get a full sheet of very flat cardboard and cover the whole bed. Use a target graphic that shows placement over the whole bed to give you a sense of how the displacement shows up. If it significantly warps over different areas, that might be an issue. If it is pretty close or exact on the center, yours might be within specs.
Here is one of the most robust discussions back in the pre-release days before production units rolled out and we were discussing what is normal and how to tell.