“Font” generally means something one can be baptized in, so that term, though common in the past, seems a misnomer at best.
How often does your parish clean and refill them? My original home parish used sponges, which strike me as distinctly non-hygenic. Unless changed out every day.
A few parishes don’t use these at all, sending people to the main baptismal pool, which is, by definition, a font. A real one.
What’s in use where you worship?