Asking whether a VW Arteon 1.Generation Shooting Brake 2.0 TSI OPF R-Line DSG is a good family car, is not easy to answer from a technical point of view. The range of families requirements is wide, so this consideration only considers the common aspects.
The VW Arteon has 5 seats, which is enough for many families, and also brings a decent trunk with 1632 liters of volume, in which there is still room for luggage even with a stroller loaded. Good conditions for a family car. There are no Isofix brackets installed. These could be used to secure child seats easily and safely.