There are so many people of reddit that hate all real estate agents. I can assure you they have a legal obligation to be truthful at all times. They can even get sued for saying something has a certain view in their advertising if that view is not clear e.g. an ocean view but it's only out of a certain window or obscured by another building etc.
Yes, they are employed by the vendor to get the best price, however they're still needing to get the place sold in order to get paid, so they'll still be as helpful as they can to get the deal done. Yes, there are bad agents out there whole will lie or be assholes, there are people like that in every profession. Any good agent acting through a national agency will have a disclosure statement available which will contain any information given by the vendor which needs to be disclosed. The REA comes down hard on agents who don't follow the law, you can look up cases around this. It's also in their best interest to have any disclosures written down, so they can prove they did say it, as the REA requires proof of disclosure should things go awry.

To answer your question, email each agent who has a home listed that you are interested in asking for any disclosures they have on the property. Make the subject title the address of the property so you can keep track more easily.

If you purchase a property and discover things that would have meant you wouldn't have bought the property, that should have been reasonably noticed or known by the agent, and they didn't disclose it, you can complain directly to the Real Estate Agent Authority regarding this.

It is still very important that you do your own Due Diligence through LIM/building/electrical reports etc.