You’ll forgive the car-crash metaphor, but it seems appropriate, since “Onward,” most of which unfolds in the present day, boasts more vehicular recklessness than any Pixar movie outside the “Cars” franchise.
I might go so far as to call it Pixar's most aggressively mediocre feature - the aggression in this case being that all the other contenders for that title (2013's Monsters University , 2016's Finding Dory , 2017's Cars 3 ) were sequels or prequels, while Onward is an original story.
Whatever the origins of this thread, it seems to be of a piece with the anxieties of Cars 3 and Monsters University, in which Lightning McQueen worried about being a has-been, or worse, a sellout, and Mike Wazowski came to terms with leaving greatness to others and being okay just being okay.
Scanlon, who began at Pixar as a storyboard artist on 2006's Cars and has been part of their "senior creative team" since 2012's Brave, takes to heart the importance the studio has long placed on story and characters.