I read an article about a British man who lived about as long as this. His taste buds had all worn off of his tongue so he couldn’t enjoy his food any more. He was in a nursing home, wasn’t very mobile and didn’t get out much. He may have been alive but it wasn’t much of a life.
My Dad (94 at the time) had to have a powdered thickener mixed with his liquids during his last couple of months, due to recurring aspirational pneumonia.
Given his age-related dementia he was pretty much slurping liquid into his lungs, which was what finally got him.