react-dom/client
The react-dom/client APIs let you render React components on the client (in the browser). These APIs are typically used at the top level of your app to initialize your React tree. A framework may call them for you. Most of your components don’t need to import or use them.
React DOM Client APIs
createRootlets you create a root to display React components inside a browser DOM node.hydrateRootlets you display React components inside a browser DOM node whose HTML content was previously generated byreact-dom/server.
Browser support
React supports all popular browsers, including Internet Explorer 9 and above. Some polyfills are required for older browsers such as IE 9 and IE 10.