The official Game Expert answer to losing boosters when switching phones includes this statement:
"Always remember that we never recommend storing too many free boosters on your device, not only is there a chance they may be lost but they can also affect the game play. We offer a variety of ways to get free boosters every day so there is no need to stockpile them. Use them to get past those tricky levels!"
Does this response suggest that the game registers what boosters we have and adjust our events or our game board difficulty according to this?