No. I have burned plywood. It is made of layers of wood glued together. The wood remains flammable and the glue might be flammable. A wall made of plywood might block a fire for minutes but will burn through.
You can improve the fire resistance of paper if you coat it in a non combsustible material. Phenolic resin or alum coatings can help. The finished product can still char and discolour and degrade.