I have a 21 3.0L AT4, has 12,000kms (7,500 miles) on it... I have had the extended crank issue in the hotter months, seems better now... but just checked the engine oil & it was a whole quart low with 5,000kms (3,100 miles) on the oil change.
It will become a 2022 AT4 Limited with a 6.2L this week. If I wanted to drive something that may or may not start & has to have its oil monitored, I'd have chosen a ford.
I liked the empty fuel economy of my 3.0L but it was no better than a gas engine when trailering and no better in city driving... so yes, I do regret the 3.0L a bit.
That said, I got drug money for it, so it's a no-brainer to trade on the 22 6.2L. My 21 was an absolute base AT4, the only option was the 3.0L... this new 22 has every option except carbon pro (and start/stop not available due to chip shortage, I'm not heart broken about that at all) and I am paying $2,700 difference, so hand that to the 3.0L for holding value... I'm easily buying $6,000 more truck and moving up a year.