I think the bigger message in the post you're responding to is that for the first few years of your career, you should switch jobs often. In the first few years of my career I was put in the situation a few times where:
1. Raises at my current company weren't offered unless requested, or unless a promotion (change in title) occurred. Sometimes both.
2. Raises associated with normal growth in your role at my current company were pretty consistently 3-4%, raises associated with a promotion were 5-8%.
3. Switching companies would get me a 10-20% raise.
Early in your career, the value you're providing is improving fast, and your compensation should keep up, but for most, it doesn't, because management has an idea that some percentage is "standard".
Having talked to lots of people about their salaries (which all workers should do), it doesn't seem to matter much whether you're switching between startups, between FAANG (or similar) companies, or between the two. But if the person you're responding to took a trajectory that led through a few companies to FAANG, it might create the impression that it's good to go to other companies before FAANG.