I'm experiencing this now and it's taking some energy to not become disillusioned with the industry. Generalists, or people with a "wide T", are also a lot less valuable than specialists. For any given technology or stack right now, some company out there is doing something cool with it, and they only want to hire people who are already familiar with their particular configuration. The couple of tech interviews I've…
Actually, the SV tech companies do want a particular kind of specialist - Leetcode Masters.
As long as you can regurgitate algorithms while putting on a show as if you discovered the solution serendipitously at the whiteboard, you're golden regardless of whether you have 20 years of experience in Rust or whether your previous job was serving tables as a waiter.
In fact, going along with the theme of this original article, some tech companies have a pipeline for "nontraditional applicants", so I feel in some sense, it can actually be advantageous to be a former waiter whose spent time mastering leetcode vs. an industry veteran with many years of experience at the "wrong companies".