Using a VPN does protect you from hackers and predators trying to access your personal information through chatrooms, however, you are still as much at risk of seeing unsolicited dangerous content as before. Any children using Omegle with a VPN could still see explicit content. A VPN would, however, prevent the hacker from knowing your internet or personal details such as IP address or MAC address, which is why it is always better to use a VPN before accessing Omegle.