I don't know the technology about it,but I have use the Reynolds freezer paper for +40 yars and my parents used it when I was young. Can't say I ever experienced freezer burn.
I don't use anyhing special but have always used what is clled the butcher wrap , which is putting themeat at the corner of the paper and wrapping diagaonally.

I have never had frost free freezer though

If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles