New Starbucks drink

Is the new Iced toasted vanilla oatmilk shake espresso kosher

Post please Ingredients. For Pesach definitely not.

Ingredients
Ice, oatmilk,brewed espresso, toasted vanilla flavored syrup [Suger,water, natural flavors,preservative: potassium sorbate,citric acid]

Its kosher (not for Pesach)