Interesting, thanks for the article! So it looks like there are two types of people: those who don't mind moving away from the home row a bit but have just one keypress (me) vs. those who value being on the home row and don't mind the additional keypress to access layers with symbols, arrows, , etc;
I wrote an article on the subject recently if you're up for having your assumptions challenged: https://callumoakley.net/posts/48-keys-are-plenty