This floor is about 20 years old. It's some kind of fake plasticky tile (no seams between the tiles, looks like all one sheet) on top of a lighter gray papery material on top of a darker gray concrete-like material (but not as hard). I drilled a little hole for inspection, and I didn't go all the way down, but ultimately there is a wood subfloor at the bottom.
I'm looking to replace this floor with vinyl planks. Can I just peel off this plastic stuff, apply floor primer, and lay the planks over that?