GDI engines produce soot, that soot becomes suspended in the oil. That oil is the same oil that lubricates the chain and other components. The longer the OCI the more contaminants are in suspension "lubricating" your timing components. The longer your OCI the higher chance you have of prematurely wearing out your timing chain. If you want long life out of the chain, change it more frequently than 10K.
This has been proven on GM's 2.4 and 3.6 engines. They spec'd too long an OCI and timing chain failures resulted. Yes, it was bad design but it shows that more frequent OCI's can mitigate the problem.
VW (and many other manufactures) have struggled with certain engines and their timing chains as well. Our 2014 Jetta started exhibiting symptoms of a "stretched" chain and upon some reading I found it was a fairly common issue with the early 1.8 TSI's. Shortly after discovering that potentially very costly repair (and for a variety of other reason) we traded the 2014 for a 2020 Jetta 1.4 TSI equipped with a timing belt. I didn't want to go down the VW timing chain path again, not yet. They have a history of timing issues and clearly they didn't have it resolved in 2014.
Sorry for getting off on a rabbit trail. My recommendation is to NOT do extended OCI's in timing chain equipped engines and expect a long service life.