I do have a 2017 3.5. Yes.You basically reiterated what i said.
OP has a 2017 model, which i took it upon myself to assume was a 3.5. In that case it has both port and direct injection. So the point about the detergents is completely relevant here.
Oil is only part of the Equation with valve deposits. Most VCT engines simulate EGR effect by retarding intake camshafts to cause reversion of a small amount of post-combusion gases back into the intake during cruising conditions. Because the intake valves are much cooler than the chamber, combustion sediment condenses and glues to the valves and bowls. This is why catch cans aren't super effective (full disclosure, i have a UPR can).