> And the question that I ask myself after having read the book is: How can we achieve things with no burnout or ego-driven mindset?

I always read him as saying that the valuing of achievement itself comes from the depression/burnout society he observes in his native South Korea. Ie, we only obsess over achievement in the first place because society is so stratified and the stakes are so high if you fail.

I think he overall has a distaste for what he calls the 'achievement subject', and is more aligned with people like Baudrilliard in favouring individuation through developing a contemplative and very singular personal identity.