I am just going to toss this out there. Poly Vinyl Alcohol is the principal ingredient of glue sticks, white glue, book binders glue, and many hair spays, (aquanet ) The difference is just the delivery system.
Hairsprays are all over the place, resorcinol, vinyls seem to the the most common. (resorcinol!!! cray cray that is used to glue plywood together!!) The majority of 3d printers use either a surface designed to adhere or PVAs.
Personally I’d stay away from hairspray mostly because the propellents are almost always flammable. The general consensus is the PVA based hair sprays are the best.
Most are suggesting a thin pva coating, aerosol, pump or smear. It is all the same really.
Magigoo is different it is as I understand dissolved PLA rather than a vinyl, but at the end of the day a PEI,PVA,PLA, and powder coating is a thin coating of plastic for the plastic filament to stick to. Painters tapes too sometimes have a thin plastic layer on the outside.