X’er here. I have what most would consider a good job, with good pay, and a good boss. I consider it a good job with good pay and a good boss. My spouse is unable to work, and we have two children. I’m currently seeking some skill or product I can develop without taking time away from my existing responsibilities such that I have a chance of not having to work until I die at my desk one day.
With no shade against millenials, this is the only time I’m grumpy about being forgotten in the generational sniping that goes on. All these articles (like OP) about this very valid angst from older millenials and I identify with it pretty much every time. I know I’m not the only X’er who does.