We used to use various flavors of Javascript long before react native came into being and once it came, we went all big on it. There were times when React-native and other cross platform technologies (like Flutter, Ionic, QT) were only good for creating App MVPs and had a lot of issues such as integration with third party libraries, with Device’s own hardware capabilities and so on. But today as of mid-2022 we can safely say that React Native can help building as good or superior apps as a native tech would do and that do with single coding effort. Its like Java of old days, “Write once, run anywhere”.