Hello! Great question, and not something I, as a native English speaker ever even thought about! You can use the term "up there" when talking about the front of a room. Here are some examples.
When a teacher is about to give a lecture to a classroom, they use the phrase "eyes up front!", meaning "everyone look at me here at the front of the room".
"The teacher got mad that I wasn't paying attention in class, so they made me move UP to the front of the room"
If my wife asks me where she left her keys, I would tell her "you left them UP FRONT on the table", meaning on the table at the front (entry area) of the house
If I'm at a concert and I see someone I recognize, I might text them and say "Hey, is that you up front?" or "Is that you up at the front?"
I hope these examples help!