[chubot]

You might want to look at

Is dev compensation bimodal?

https://danluu.com/bimodal-compensation/

i.e. can you draw a line between devs who get paid a lot and those who don't?

I wish there was a date on this article (and all blogs) but it looks like it's from 2015.

The conclusion isn't crisp, but to me it's plausible that the trends have continued since 2015, e.g. maybe it's more bimodal 5 years later (though I haven't really been paying attention). I would be interested in a followup.