Like most folks say the choices are yours. To make overall life easier (or as easy as possible under your given conditions):

I hope you have a living will in order with a designated health care proxy. The living will spells out conditions under which the patient declares the kind and amount of care they want. The health care proxy gives the doctors and health care professionals a go-to person who will call the shots.

Make some exploratory calls to hospices. They can help you come to some choices as to avenues to pursue or not, including last days home care and a 'good death'.

Feeding tube issues. Feeding tubes that go through the nose are very uncomfortable. Going to a 'direct' tube into the stomach will make things more easy for the patient. The issue of whether or not to remove it is actually spurious. The real issue is whether or not to put anything down it. If you are the proxy, you call the shots.

Remember the survivors. Things can be tougher for them than for the patient.