It seems that onGloballyPositioned always requests remeasurement on recomposition.

When setting a new modifier we are doing:

if (layoutState == Ready && addedCallback) {
   // We need to notify the callbacks of a change in position since there's
   // a new one.
   requestRemeasure()
}

and here addedCallback will always be true, because Modifier.onGloballyPositioned is always creating a new object on recomposition. Fixing this might require an API change as onGloballyPositioned is currently inline, so we cannot use the lambda instance to check for modifier equality across recomposition.