Excuse me, what does the front desk staff do?

Generally speaking, the front office is the department that receives and sends away guests.

This is the window of the hotel.

The specific types are basically:

Front desk reception, front desk cashier, lobby cashier and lobby bartender

Many hotels have doormen and bellmen in the front office.

However, high-star hotels classify doormen as concierge.

Some hotels also count the hotel mall at the front desk.

Generally, high-star hotels will have special shopping malls.