Anyone have problems with AFM lifters/cam on 2015 and up 5.3 GM engine?

I was looking to update my daily pickup and found a real nice 2015, 1500 High Country with 44,000 miles at a Chevy dealer. During my research on them I came across a lot of complaints and failures with cam and lifters relating to the Active Fuel Management system. I'm spooked now and am considering passing. From my research its happened to trucks with various mileage. Anyone on here have this issue or can contribute more info? Thanks.