How many layers are there?
When the house was first built some time around 1963 the walls in the bathroom were painted. Then somebody wallpapered them, then someone stripped the wallpaper off leaving the backing in place and painted, then someone wallpapered, then someone painted, then someone wallpapered, then I stripped the wallpaper and most but not all of the glue residue and textured the walls with a wallpaper border.
Now I’m trying to get 40 odd years worth of assorted layers off and it feels more like an archeological excavation than a remodel.