The lack of features is a feature until you discover how much better the Boox experience is, where you can download apps for Safari Books, MS's One Note app, and even the default reader gets much better.
To say that the lack of features is intentional is a bit disingenuous. It doesn't force you to focus, it just forces you to pick up your phone to get distracted.
I’m sure it doesn’t affect everyone the same. But I know for sure it helps me stay focused. Maybe it helps that my phone has a small screen that isn’t comfortable to extensively read on.
By the way in that situation I’ll often send the article to the reMarkable then realize I don’t care to read it once I see it on the eink screen, and go back to work.
To say that the lack of features is intentional is a bit disingenuous. It doesn't force you to focus, it just forces you to pick up your phone to get distracted.