I’m currently job seeking. Some companies apply to the letter of this but still share almost no information. I’ve seen salary ranges like 140-280k. In essence that tells me the company still wants to not overpay like the parent comment said.
Maybe that just reflects the fact that some engineers do far more valuable work than others.
Hell, I've seen companies post jobs with "salary ranges" spanning all the way from barely minimum wage to C-suite. It's just lazy compliance.