While I think the basic idea of deliberately introducing friction is interesting, I’d say the philosophers cited are making what’s really a psychology statement, and so exceeding their qualifications, which irks me. The essay itself is philosophy, at least in the “design philosophy” sense.
If you are designing friction in, how do you go about it without turning away users? BeReal is the first successful-ish example that comes to mind. Forcing you to post at an inconvenient time is arguably friction-y, but people sign up in that case because the friction is experienced socially all at once, and it’s a statement against the atmosphere conventional social media creates. For more practical tools that might be hard to replicate.