VSCode -> Electron (essentially purpose specific web browser) -> Chromium
news.ycombinator.com -> General Purpose Web Browser -> Chromium
Which is exactly why VSCode has a near parity version that runs on the web, under any browser engine.
Saying VSCode is based on Chromium doesn't make any sense.
VSCode -> Electron (essentially purpose specific web browser) -> Chromium
news.ycombinator.com -> General Purpose Web Browser -> Chromium