Earlier quoted context omitted.
> If other people find their ideal job, have a tropical vacation, etc. it makes me feel... good? Those are good things in general, although the tropical vacation might make me also feel concerned about the climate. If this would be your genuine reaction, congratulations. You belong to the 0.001% of the population that would feel this way.
If a friend gets a great job or starts to live a healthy life you don't feel great for them? I don't believe that puts me in the minority of people, not a chance.
We can feel happy (for them) and unsatisfied (with ourselves) at the same time. Multiply that by N, and well, that's a recipe for disaster (at least for me). I know, I know, we shall not compare ourselves with others, but hey, I'm not a machine, I have my imperfections which I am polishing from time to time, but in the meanwhile social media makes everything worse in average (for me).