React-native-webview - https://github.com/react-native-community/react-native-webview moved away from UIWebView quite a while ago, so if you're using a recent version of it, you should be fine.
Maybe check that FNAuth has done the same.
PeteTheHeat
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Some newer data on this: Airbnb (a previous large proponent and contributor to RN) decided to move away from RN
Microsoft uses RN for a bunch of office/xbox apps and built RN for windows and MacOS
Shopify says "RN is the future"
Coinbase wrote a great retrospective on their RN endeavors.
I would love to link articles but this forum is not letting me, you'll need to google them yourself.