It’s a play on the phrase “Well-behaved women seldom make history” which comes from a 2007 book by the historian Laurel Ulrich. Because no one read the book for the context, the quote itself became popular, taking on different meanings based on however individuals choose to represent it.
When it was added to the lexicon of basic white girls, it naturally became productized into shirts, mugs, neon signs, etc.
Except Chromium can still access the Chrome extension store. The VSCode extension store is not included with the OSS version, which seriously hampers the usefulness of the app.