This is definitely not true. It’s all dependent on the company size.
I work in cloud consulting (specialize in app dev).
I worked at AWS ProServe (full blue badge RSU earning employee) before working for a much smaller company. I’ve seen the leveling guidelines for both.
An L5 (mid level) at AWS had to be a subject matter expert in at least one area (development, DevOps, security, etc) and be able to lead a “workstream” of a larger project including dealing with a customer or a smaller project by themselves. That maps to a “Senior Architect” at my current company.
A senior (L6) at AWS should be able to handle larger projects with multiple workstreams and deal with more ambiguity. That maps to a staff at my current company (current position)
An L7 is usually over a practice and/or handling multiple large implementations and more involved with strategy. Imagine someone (who hypothetically - they don’t need outside consultants) was working with Netflix.
That maps to a “Senior Staff” at our company.
You might ask what about lower levels in consulting? I never work with them. The bilingual cloud architects/senior cloud architects work with them. We don’t hire anything lower than that in the US.