I have a Gen 4 2020 and from what I have heard, the '20s have the cam-phaser issue "worked out."
Either way, I am continually concerned about the longevity with a twin turbo'ed, 10spd, twin fuel injected, etc.
It is a ton of tech that really strives to get great fuel mileage, emissions and a ton of power. This thing is fast, even with 87 octane.
Don't know what price will be paid at 100K+ but it seems driving it on the hard-duty schedule helps (quality synthetic changes at 5-6K, etc.) If I keep this past 100K it will be under a full extended warranty.
YMMV--