https://abhishekbansal.dev/synthetics-to-viewbinding/

fragment_binding.kt

class DemoFragment : Fragment() {
    // declare binding
    private var binding: FragmentDemoBinding? = null
    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                              savedInstanceState: Bundle?): View? {
        // inflate and return view
        binding = FragmentDemoBinding.inflate(inflater, container, false)
        return binding?.root
    }

    override fun onDestroyView() {
        super.onDestroyView()
        // make it null to handle different view lifecycle in fragments
        binding = null
    }
}