[Kiro]

No idea where you live but that's definitely not how it works in my country.

Real estate agents here do a lot. They decorate your apartment, take professional photos, create marketing campaigns on Facebook and all the big listing sites. You set a date and they handle the showings. After that there's one bidding.

The only way they would be able to sell it before the bidding is if someone makes an offer before the showings.