My partner and I both work hard but they seem naturally content with what we have while I'm always thinking about what we're missing.
More people experience this than they realize.
You're comparing your internal experience of desire to their external expression of contentment, not recognizing that satisfaction is a skill that can be developed rather than an inborn trait.
“Where Are You with Abundance mindset across traditions?”
If this sounds familiar, the Library can help you find the bigger picture.