Hello @anonymous624 I can't give you medical advice here but a head and neck oncology surgeon would be my choice. Since you are on Libtayo, I would assume your cancer has been classified HPV 16+. It is however curious to me that cancer on your forehead metastasized and morphed(?) into Squamous Cell cancer, which is typically an internal skin cancer such as the lining of the mouth, sinus, throat, etc.
Anyway, make sure your surgeon has a lot of experience with not only head and neck but cancer surgery primarily. Either way, it won't be a fun ride at the fair. Courage.