Used Volkswagen Polo Propshaft

No — the Volkswagen Polo is a front-wheel-drive car across all generations and variants, and front-wheel-drive vehicles do not have a propshaft; drive goes directly from the gearbox to the front wheels via driveshafts (also called CV shafts or half-shafts). A propshaft is only found on rear-wheel-drive or four-wheel-drive layouts, neither of which the Polo uses. If you're looking for a Polo drivetrain part, you most likely need a front driveshaft (NS or OS), and a breaker can supply the correct one for your registration.

That's almost certainly a mistake or a miscommunication — the Polo has never been offered with rear-wheel drive or four-wheel drive in any generation, so there is no propshaft in the drivetrain. What you probably need is a front driveshaft (the nearside or offside CV shaft running from the gearbox to the front wheel), which is the equivalent component in a front-wheel-drive car. Double-check the part name with your breaker and quote them your registration so they can identify the correct shaft.

On a Polo there is no propshaft at all, because the car is front-wheel drive — a propshaft carries drive along the length of a vehicle to a rear axle, which simply doesn't apply here. What the Polo does have are front driveshafts (one on each side), which transfer drive from the gearbox out to the front wheels. If you need one of these, let the breaker know whether it's the nearside (NS, passenger side) or offside (OS, driver side) shaft, along with your registration, so they can match it to the correct generation and engine.

No — even the higher-powered Polo variants including the GTI are front-wheel drive, so none of them have a propshaft regardless of engine size. The GTI and other performance variants still send drive to the front wheels via driveshafts, not a propshaft. If you're working on a performance variant and need a drivetrain part, a breaker can confirm exactly which driveshaft suits your specific engine and generation against your registration.