What does foil affect finish scrounging contained by furniture? is this rubbish furniture? ...
Answers: It is the material used for the surface of the fibre-board. (By the channel, it's foil-effect, not "affect".)
It is a high part surface layer for 'MDF' (fibre-board). Whereas melamine is used on chipboard - habitually at the cheaper end of the price variety. Though, having said that, melamine is extremely tough and make better worktops in kitchens than foil. Foil is fine within bedrooms and offices for worktops. It is softer to the touch than melamine - which is rugged and brittle and it can be produced with a photograph of timber on it, for example, close to pine or maple, or oak etc. (to 'affect' a look of real wood) whereas melamine singular holds a random shape or is plain. Foil can be plain also.
It is used as the surface layer for MDF, whereas melamine is the surface on chipboard.
In furniture close to kitchen, bedroom, office etc. the doors and drawer-fronts are almost other either foil or actual timber, as melamine and chipboard together are not good materials for producing the moulded shapes, profiles and mock field panels commonly found on doors. Simple radiused, or bull-nosed mouldings such as the edges of worktops can be produced with chipboard and melamine. If the worktops are also 'foiled' though, they usually boast more complicated, florid, moulded edges, and even 'real' woodgrain motifs. These are usually the middle-range products in the pricing scheme.
Oddly, or so it might seem, the unreasonable 'top-range' finishes are quite regularly in chipboard, not MDF; but specifically because neither foil or melamine is used as the surface layer but actual oak or maple (etc) veneer. Which is fine on chipboard. Though even on these ranges, things like cornices and skirtings are still foiled MDF.
It is zilch to do with whether or not the furniture is "rubbish". But foil is regularly considered to be of higher part than melamine. (You just wouldn't want it for kitchen worktops).
It is so call because it is, literally, a foil material, bonded over the MDF (the fibre-board) as an outer-layer.
I'm not sure what a foil "affect" or "effect" finish is, but a foil finish is a totally durable, waterproof, stain-resistant article laminate generally used over particleboard or plywood. It is, within effect, a veneer. I've seen it on the whole in cabinetry. As for rubbish furniture, it for sure won't be solid wood, and certainly smaller quantity expensive than other alternatives. The only means of access is to judge for yourself by inspecting a piece.