Well... In my case the scaffolding was done by the Expo template, used Expo libraries for social login and I wrote the Expo API backend functions.

Was it productivity boost for me - yeah, cause I know mostly shit about React. But as an end result it just felt very underwhelming. Discussing it today with my brother (who lives and breathes FE) it apparently was.

I guess I was just expecting... I dunno... more - people are claiming nX productivity boosts, and considering how the UI is mostly boilerplate...