I don't know if social media increased mental illness, but it definitely exposed it (and probably doesn't help it outside of depression/isolation). I can only speak for the US, there is widespread access to care, but its focused on fad diagnosis and pills.
I will not sell my eyeballs to the orb. I can't imagine any freedom loving human on this earth would concoct such an apparatus. It's the most dystopian horror sci-fi thing I've ever seen irl.