It is a great "workhorse" font. Awesome for noticing it. When Tapestry first launched it was the only font offered because of it's readability in most cases. An artist made this Tapestry story breaking it down: https://readtapestry.com/s/C9M36zhFA/
As a nontechnical cofounder myself, I agree on all points. I've seen these kids at every tech meetup. Unfortunately, early on I've seen a few of these "qualities" in technical cofounders too.
This post reiterates a few keys points we all know. Don't hire or work with assholes (an entire book on it), and focus.