As at all post offices in Minsk, there is a queue for coupons, clean, calm, exceptionally polite Belpost employees. And there are practically no queues, during the day rare visitors come in or 1-3 people at most.
Politeness is already a characteristic feature of Belarusians!
If you do not want to spoil your health and nerves, do not go there from the 18th to the 24th of the month. There, the most technically backward PENSIONERS receive a pension and pay for everything.
Although you will send and receive the parcel quickly in a separate electronic queue.
They work very slowly. Earlier, you take a coupon for the parcel and you can receive the parcel and the transfer. Now money transfers are separate. You need to queue up. A madhouse. There's a 40-minute queue plus another one to wait for. And two cash registers have been stuck in the past.