If you go to vwvortex.com, their is an old car forum that was called The Car Lounge that is within the website. Don’t let the domain fool you, there are a lot of active users and discussions that have nothing to do with VW. Might want to check it out.

My Arteon, along with the Golf R, require new plugs at 40k. I think VAG and Porsche are pushing the plugs to perform more for a shorter life span.