This is actually a very nice list.Exactly this. I'm surprised by the FG%-focused posts in this thread.
Year 1 TS% comparison:
Keyonte: .541 (and trending up)
Damian Lillard: .546
Donovan Mitchell: .541
Devin Booker: .535
Tyrese Maxey: .531
Dwyane Wade: .530
Jamal Murray: .518
Dante Exum: .457
There's plenty to work on, but the year 1 overall shooting numbers (and trend) for a player his age and size are not bad.
I wonder how high % those guys shot off the dribble compared to Key? I dont know if someone knows where that can be easily found. May need to scan through their rookie year shooting splits to see assist rates at some point..