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kotlinlang

grouping gesture events can help....
One approach is to capture the first down event and then consume any additional pointer events.
fun Modifier.disableMultiTouch() = pointerInput(Unit) {
    awaitEachGesture {
        // Wait for the first down event.
        val firstDown = awaitFirstDown(requireUnconsumed = false)
        // While any pointer is still pressed, consume extra ones.
        do {
            val event = awaitPointerEvent()
            event.changes.filter { it.id != firstDown.id && it.pressed }
                .forEach { it.consume() }
        } while (event.changes.any { it.pressed })
    }
}

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