Honestly there is no much to share simply change Checkbox keyword for Switch....

Row(Modifier.padding(5.dp)) {
    Text("Selected")
    //Switch(checked = lselected, onCheckedChange = { lselected = !lselected} )
    Checkbox(checked = lselected, onCheckedChange = { lselected = !lselected} )
    Text("Unselected")
}

Can you share the declaration of

lselected

too please?

It's a know issue as now Switch invokes

onCheckChange

after initial composition with the same value that you set in the Switch. For what it worth, the more correct handling of the callback would be

onCheckedChange = { lselected = it }

as switch already gives you the hint about to which state it wants to change

Thank you so much, still both components checkbox and switch should work equally I guess ... some day .. in the future

Could you please clarify what you mean by "equally"? What's the difference between Checkbox and Switch behaviour that you see aside from that bug?

Jesus I don't want to argue at all, I'm quite satisfied, and I don't see any difference aside from that bug. I swear it!

Sorry if I sounded rude, I didn't mean it. Thanks for your report and if you will find anything unusual or unpredictable about selection controls in the future -- please do let me know 🙂