How to receive PayPal money from games?

Could you elaborate on the process of receiving PayPal money from games? I'm curious to know if this is a common practice and how it typically works. Are there specific games that offer this feature, or is it a more general approach? Also, are there any security measures or precautions one should take to ensure the safety of their financial transactions when engaging with this practice? Finally, how long does the process take from earning the money in the game to actually receiving it in your PayPal account? I'd appreciate any clarification on these points.