how change padding Scaffold value

[v0nd1]

As you can see, the buttons on the screenshot are not located in the middle, as I need it, what can be done to change the situation. I'm new to material 3 and compose.

{values ->
                        LazyColumn(
                            modifier = Modifier
                                .padding(values),
                            horizontalAlignment = Alignment.CenterHorizontally,
                            verticalArrangement = Arrangement.Center
                        ){
                            items(10){
                                index ->
                                Row(
                                    horizontalArrangement = Arrangement.Center,
                                    verticalAlignment = Alignment.CenterVertically
                                ) {
                                    Button(
                                        onClick = { /*TODO*/ },
                                        modifier = Modifier
                                            .width(100.dp)
                                    ) {

                                    }
                                    Button(
                                        onClick = { /*TODO*/ },
                                        modifier = Modifier
                                            .width(100.dp)
                                    ) {

                                    }
                                }
                            }
                        }
                    }

[pablichjenkov]

Row needs to fill the whole available width for the center alignment to have effect. Otherwise, it will just wrap the children.