In the South East, they bring you sweetened (usually far too sweetened for my tastes) iced tea. This is amazingly universal.
I live in NC and have been probing the border for years.
For “nicer” restaurants, the universal sweet tea boundary seems to be precisely at the NC/VA border.
In Australia - you might get asked what type of tea. There’s usually about 10 types of the menu from the usual English Breakfast or Early Grey to Chai, green or some other more fruity variants. It may come in a pot, or a cup, or a mug, depending on the sophistication of the joint. You’ll usually be asked “cup or mug?”.
And in Australia, they’re pretty good about knowing which teas need sugar and or milk and usually bring that separately to the table for you to apply the way you want. Other times they’ll ask “how many sugars and how much milk”?
Everywhere else in the world they either bring woefully too little milk, or can’t even begin to understand the concept of milk in your tea. (mainland Europe and Asia mostly).