Source? I doubt many making north of 300k per year are living paycheck to paycheck. It's hard to not save money (like at least 10%) at that income imo.
I'm surprised it's that low to be honest. By their definition of any mental illness, it can be anything from severe schizophrenia to mild autism. The subset that would consider suicide is a small slice of that.
Would be more meaningful to look at the % of people with suicidal ideation.
For people that care about vendor lock-in (which granted doesn't seem to be many), Pixels are great. They are supported on just about every network and you can root it if you desire.