Is Lupron cheaper for U.S. insurance companies than Firmagon or Orgovyx, or is it purely a matter of which one the medical team thinks would be most appropriate?

Going from Firmagon (monthly injection) or Orgovyx (daily pill) has improved my quality of life enormously. I no longer have the huge swelling, the rash, or the 3 days of flu/COVID-like symptoms I got after every shot.