Do a search here for timing chain. The general feedback is chain wearing is less of a problem than going inside as a precaution to replace the tensioner which has been troublesome on some models and of course the chain would probably be replaced at the same time. Worry less about chain wear and more about the tensioner. A wearing chain just becomes a noise nuisance, but a bad tensioner can lead to a grenaded engine.
VW also issued an extended warranty (100K miles or 10 years since car was put in service, whichever comes first) regarding the timing chain and tensioner. You have to go to the VW dealer and have them run the VIN to determine the initial date of service. My 2011 was put in service in Feb 2011, so the extended warranty was good until Feb 2021. Recently sold the car, and gave extended warranty paperwork to new owner.