It sounds like your 2016 Superb 2.0 TDI DSG Estate is experiencing a low-pitched, rhythmic noise with slight vibration, noticeable even at low speeds and unaffected by shifting loads or moving into Neutral. Although it has the characteristics of a classic wheel bearing failure, the fact that the noise doesn't change while cornering slightly complicates the diagnosis, as worn bearings typically get louder or quieter depending on load direction. Other possibilities could include an issue with the tires (such as cupping or uneven wear), driveshaft bearings, or even DSG transmission-related components still spinning while coasting. However, given the description, wheel bearings are still a strong suspect and should be carefully inspected first, especially since bearing noise can sometimes behave unpredictably depending on how worn they are.