The important thing here is for people to understand that at best titles only indicate relative rank within a company. And even then that's tenuous. Titles are effectively meaningless when comparing outside of a company.

You get (finite) periods where several large / influential companies have a reasonably high level of rigor for their own levels, and there is a pretty stable mapping between the companies.

One such period seems to have ended sometime around the start of Covid, or a bit before.