Rg: you started this thread with a series of questions that included:
4. Does anyone serve pizza or is it considered not yom tov’dik?
5. Does anyone use milk to make kiddush for this meal?
Where did you indicate you wanted a “light” discussion? Yes we have served and eaten homemade pizza on shavuous day as I consider it on the same level as cheese blintzes, cheese cake, baked ziti, eggplant parmesean, lasagne. I dont serve any of these these at a shabbos seudah becuase i eat fleishigs at the first two seudos not because they are not shabbosdik. And while you proved to me that milk is chamar medina I dont know anyone who makes Kiddush on milk.