I gather cinnamon candies and Jolly Ranchers also help with the mouth stuff.

Hydration seems good but do watch your electrolytes - if nothing else, 6 teaspoons of sugar and ½ teaspoon of salt to 1L water. I don't know what Gatorade flavors go best with Paxlovid mouth but I'd assume something sour. Don't worry about the food if it doesn't sound good - your "shove in face if awake" works fine.

Warm salt water gargles for the throat pain.