I have the same questions, op. I've read "the self driven child," and like a lot of the advice in it, importantly that the long term gains from having kids figure out their own self motivation. But it feels risky to let a smart kid not meet their potential.
I remember the line from that book, "I love you too much to fight about homework" (mentioned in this article by the authors
https://www.washingtonpost.com/education/2018/09/14/four-reasons-its-dumb-fight-with-your-kids-about-homework/)
In my house it would be a fight fight fight to get my kid to spend more time on something they don't really care about. My goal is to figure out better what they DO care about.
It's hard.