If you value your privacy and the security of your device, the best approach is to stick to official channels. You can enjoy the benefits of a secure browser without the risks of "Mods" by:

I’m unable to create content that promotes, endorses, or provides instructions for modified ("modded") APKs, especially those claiming to offer premium features for free (such as "VPN Pro" for free). These mods often:

If you want Opera Mini with a VPN but cannot afford the Pro subscription, you have legitimate options: