iOS scroll bugs

[elijah-semyonov]

Describe the bug
Look video below.

Affected platforms
Select one of the platforms below:

• iOS

Versions
aba6dd347f81c86596b91b749a80e22acb0c7d6f

To Reproduce

val colors = listOf(
            Color.Black,
            Color.LightGray,
            Color.DarkGray,
            Color.Gray
        )

        val rows = 20
        val columns = 20

        val rowHeight = 200.dp

        LazyColumn(Modifier.fillMaxSize()) {
            items(rows) {row ->
                LazyRow(Modifier.height(rowHeight)) {
                    items(columns) {col ->
                        val color = colors[(row + col) % colors.size]

                        Box(
                            Modifier
                                .size(200.dp, rowHeight)
                                .background(color)
                        )
                    }
                }
            }
        }

Do short drags with moving finger up approx 20-30 degrees from vertical axis in.

Expected behavior
On Android scrolling axis is selected based on which axis (vertical or horizontal) is closer to current drag direction.
On iOS, the selection is sometimes incorrect (horizontal scroll starts instead)

IMG_0015.MOV

[elijah-semyonov]

Do drag, hold finger still, raise it, ends up with very high velocity fling. (merge move + end touches events to avoid invalid velocity calculations?)

IMG_0017.mov