To attempt to try and learn, I've placed this in my top level Column of my little play app:

val isVisible = WindowInsets.isImeVisible
LaunchedEffect(WindowInsets.isImeVisible) { println(">>>>>> KEYBOARD HAPPENED!! $isVisible") }

When I tap a TextBox and the keyboard comes up, I get the following in Logcat:

>>>>>> KEYBOARD HAPPENED!! true

When I dismiss the keyboard with the

Done

button, I see:

>>>>>> KEYBOARD HAPPENED!! false
>>>>>> KEYBOARD HAPPENED!! true
>>>>>> KEYBOARD HAPPENED!! false

Why do I get the back and forth on dismissal? Why not just one false?

Which method are you using to hide the keyboard upon hitting

Done

?

keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
keyboardActions = KeyboardActions.Default

I just tap the Done button with those settings

It sounds like this is related to https://issuetracker.google.com/issues/278739418 . You could try using the workaround in that issue and call

inputMethodManager.hideSoftInputFromWindow

directly for

Done

instead of relying on the internal default