You're quite sure of all that, are you?
Perhaps you wish to explain why NBA Draftnet says the following:
"Strengths: Athletic wing who plays with a lot of heart and determination ... Has an explosive first step that he uses to get by defenders to the rim ... He’s great at finishing around the basket ... He’s a good three-point shooter ... He shot 38% from behind the arc this season on just over three attempts per game ... He’s a great athlete with strong arms which will make a coveted player at the next level ... He has great leaping ability which will make him fun to watch in transition ... "
https://www.nbadraft.net/players/keldon-johnson
Tell us why we should believe you and not them.
You're not just lying in order to slander a Spurs player, are you?