From what I understand the primary issue with the new turbo V6’s was that a lot of them had machining debris left in the block that didn’t get cleaned during assembly, and has led to a significant number of those engines grenading themselves in as little as 10k miles. Lots of information online about it, but it sounds like this is mostly isolated from mid ’22 when they started the new body/engines to December builds of ’23. They’re on my short list for my next upgrade, as I don’t see myself needing anything larger than a half-ton any time soon. I’d also not be sad about snagging a mint ’20-’22 second gen that still had the 5.7. Love the looks of those trucks and that motor is dead reliable.
Like anything, there are going to be some growing pains with all the companies implementing turbo V6’s due to emissions regulations, but they will figure it out. If you travel outside the US much you’ll notice that most SUVs in foreign markets are powered by some form of small turbo-diesel or turbo 4/6 cylinder gas motor.