TL; DR - Expo + RN is pretty good for mobile management sim type games. I'd use it again. I know people are looking for something new now given the recent Unity news. To me, it feels way easier to build using React Native especially given the dev tools we have, and because it has a more "code first" approach vs a scene building approach.

Full Post here - https://www.parrisneeds.coffee/posts/making-a-game-in-react-native

Btw here are app store links if you want to play it! Also, for the privacy conscious - I have no integrations with analytics systems (eg Google Analytics) - just drop me a line if you have ideas for the game :)

iOS - https://apps.apple.com/us/app/formidable-inc/id1668711442?uo=4

Android - https://play.google.com/store/apps/details?id=com.betazeta.formidableinc