By "apps" this author apparently means "PyPi packages". This is a bafflingly myopic perspective in a world of myopic perspectives. Do we really expect people vibecoding "apps" to put anything on PyPi as a result? They're consumers of packagers, not creators.
I don't blame people for responding to the title instead of the article, because the article itself doesn't bother to answer its own question.
A better data set would have been the BigQuery Github stats.
Did you read the article? The author means software in general, not just user-facing apps.