I flew first class from DTW-MCO on Delta on 5/30, while on such a short flight the added amenities aren't necessarily worth it and I wouldn't purposefully book a first class ticket on a flight shorter than 3.5/4 hours, I took advantage of a free upgrade and enjoyed myself. I can confirm they are getting somewhat back to "normal". Food service was still a premade lunchbox meal and was sufficient for my short flight. The biggest change was the beverage selection. Liquor had been added back to the available options where previously was limited to red/white wine and 2-3 different beers.