Paperlike for iPad is a screen protector that adds a little extra texture to the surface of the iPad.
Some people want more texture and have suggested trying paper like on drawing tablets. I gave this a brief test with a pen tablet. Here are my thoughts:
The texture feeling is strongly dependent on the nib material. For example:
Apple pencil - The texture is very apparent. Pencil clearly grips the surface
Huion PW550 (felt nib) - a little less texture than the surface of the Huion Kamvas Pro 19
Wacom Pro Pen 2 - the texture was a little less than the Intuos Pro standard texture
Wacom Pro Pen 3 - the texture was a little less than the Intuos Pro standard texture
Overall I didn't find it worth it for pen tablets.
Generally: I wouldn't describe the feeling "like paper". but when working with the Apple Pencil it definitely adds a lot more grip to the surface. Unfortunately that doesn't extend to the drawing tablet pens i tried.