When I upgrade to Vue 3.4.5 the charts stop working.
The options are pretty simple, in fact even with just the highcharts options and no other props, it still breaks:

<highcharts
  :options="histogramOptions"
   ></highcharts>

From what I could gather, the chartContainer ref is still null when the onMounted is called. I am not entirely sure why this changes from Vue 3.3 to vue 3.4