Apparently class components and function components behave differently in Fabric.
It took me quite some time to understand what was happening and that seems to be the reason.

Created this repro:

The idea is to replace RoomsListView with it and inspect logs.
The function component one is not going to log unmounted after Go to profile is pressed.
The class component one is going to log unmount.

import { Component, useEffect } from 'react';
import { View, Button, Text } from 'react-native';

const Dummy = ({ navigation }) => (
	<View>
		<Text>RoomsListView</Text>
		<Button onPress={() => navigation.jumpTo('ProfileStackNavigator')} title='Go to profile' />
	</View>
);

function RoomsListView({ navigation }) {
	useEffect(() => {
		console.log('RoomsListView mounted');
		return () => {
			console.log('RoomsListView unmounted');
		};
	}, []);

	return <Dummy navigation={navigation} />;
}

// class RoomsListView extends Component {
// 	componentWillUnmount(): void {
// 		console.log('RoomsListView unmounted');
// 	}
// 	render() {
// 		const { navigation } = this.props;
// 		return <Dummy navigation={navigation} />;
// 	}
// }

export default RoomsListView;

I think it's time to migrate everything to function components before migrating to Fabric 👀

I think it's time to migrate everything to function components before migrating to Fabric 👀

You are just stuck in a update loop 🤣🤣

Apparently class components and function components behave differently in Fabric.

Do react native team still focus on the class components?? When I started my journey I found some articles to use the functional component instead of class 🤔

@Rohit3523

You are just stuck in a update loop 🤣🤣

Well, it's part of the job 😅

Do react native team still focus on the class components?? When I started my journey I found some articles to use the functional component instead of class 🤔

We started the app before React Hooks even existed.
We always focus on making a better product and there was no real benefits in migrating (it could actually create new bugs).
That's why we still have quite a few class components.
Now we have a good reason.