How to get cash back with tap to pay?

I'm curious about how one can get cash back when using tap to pay for purchases. Is this a feature that's widely available across all credit card issuers and payment processors? If so, how does it work exactly? Do I need to specifically request cash back at the point of sale, or is it automatically offered as an option? And are there any limitations or restrictions I should be aware of, such as minimum purchase amounts or specific stores that offer this service? I'm looking for a clear and concise explanation to help me better understand the process.