[krickelkrackel]

Won't you simply 'look up' your social media sites via Spotlight or send the link to them to yourself, so you can tap them?

[hemmert]

It will clear all cookies / logins very often, so you'd basically start from scratch, logging in and so on. It is cumbersome, and for me it was totally enough friction to not fall into old habits.

(So yes, there are potential loopholes, but they are uncomfortable to crawl through. Dopamine is all about friction, I guess)