DataStore sync same like this, no need changes

SharedPreferencesActivity.kt

class MainActivity : AppCompatActivity() {
    private lateinit var bmiBrain: BmiBrain

    // initialize class
    bmiBrain = BmiBrain(this)
  
    // load value
    binding.apply {
      edtName.setText(bmiBrain.name)
    }

    // save value
    bmiBrain.name = edtName.text.toString()

}