Somewhere in the range of not actively shitty/not shitty enough to notice to moderately proficient. If they do the task no one is likely to notice something wrong.
From what I've seen, Libro has one of the most expansive catalogs outside of Audible. What they don't have is mostly down to Audible Originals/Exclusives, sadly, there are a lot of those.
They are the types to put all the rich on a pedestal of earned success. They just cannot wrap their heads around the idea of a rich idiot, especially an old one. It's an oxymoron to them.
Feels like this implies that software is broadly maintained by its general user base when that's simply not how it is outside of really niche projects. Most FOSS software is maintained by a dedicated few who are but a tiny fraction of the user base and are far from being your "average user".
If you saw any of the posts about people getting weird DMs from a woman, "the fediverse chick" may ring a bell, her supposed name was Nichole. If none of that sounds familiar, just search "fediverse chick" and I'm sure you'll find some posts.
iOS subreddit.