Whatever.
But I'll bet you will never again become confused, and mistake a stage, an elevating platform for your feet (podia) with a reading desk/book stand/standing desk.
(well, you'll probably become confused)
The structure in question is popularly termed a podium, rightly or wrongly. It appears that your mission in life is to track down and correct this grievous misuse of Latin by English speakers. Good luck to that end. Maybe you’ll eventually find yourself mounting a podium and lecturing from a lectern regarding this earth-shattering offense.
Or, maybe not.
Whatever.