I'll chime in, long history...
2015 Silverado, shake, tried a LOT with full dealer support, tires, wheels, driveshaft, thankfully dealer damaged my truck so it was easy to part with.
2016 RAM, 4/8 cylinder mode sucked on their attempt too. Tuned with DiabloSport Intune I3 (and unlocked computer $$$) dealer did update and relocked computer, never should have bought this one.
2017 Silverado, same tuner disabled AFM YAY! Never should have SOLD this one!
2017 RAM, still no better and shook. Manually shifted into 8th to prevent it from enabling. HUGE mistake.
I REALLY HATE reduced cylinder modes.
2019 TB, yup still hate it even being DFM (upgraded AFM), DiabloSport Pulsar LT arrived TODAY, no more auto start/stop or DFM, also fixed my speedo and tuned my throttle response. WORTH EVERY PENNY!
This trend I'm afraid will never go away and it's just not a good system no matter how many tries they throw at it.