I encountered this problem mylsef. The way I solved it was to do a scroll container and then do:

func _scroll_to_text_edit(text_edit : TextEdit) -> void:
 scroll_container.ensure_control_visible(text_edit)

For the height problem you have to do it inside a _process() so it runs in every frame:

func _process(_delta: float) -> void:
 if DisplayServer.has_feature(DisplayServer.FEATURE_VIRTUAL_KEYBOARD):
  var keyboard_height = DisplayServer.virtual_keyboard_get_height()
  if keyboard_height > 0:
   self.size.y = get_viewport_rect().size.y - keyboard_height
  else:
   self.size.y = get_viewport_rect().size.y

You can check my lame implementation here: https://github.com/4Robato/track-your-counters/blob/main/UI/main.gd

It’s been a while and I forgot a bit the details and I can’t take a deeper look now but I hope this helps!

I think is better to mark a random one and keep going. I’m sure a lot of people misremembers things anyway and sending the rest of the info might be more important.