This has been discussed a lot.
Biggest culprit is some Audi engines from a few years, and those had design issues, but you are correct, even with the design issues, they have stopped burning oil with Valvoline Restore and Protect. However, the issues mainly affected those who ran Castrol 5W-40 from the dealer at 10k intervals, which was a mediocre oil at best, and it didn't even have MB 229.5 at the time. It has since gotten that approval. Enthusiasts who ran Castrol Euro Edge 0W-30 for example (or other higher quality oils) didn't have issues.
We don't have enough data yet to see how they will fare long term on non-approved oil (Valvoline Restore and Protect), but it will be interesting to see. Might see Vanos issues pop up for example.