Does stake pay out real money?

I've been hearing a lot about staking in the cryptocurrency world, and I'm curious to understand the financial implications. Could you elaborate on whether staking pays out real money? I'm interested in knowing if the rewards are denominated in the same cryptocurrency being staked or if they're converted into fiat currencies like dollars or euros. Also, is there a set interest rate or are the rewards dependent on factors like market conditions? Understanding the financial viability of staking would help me make a more informed decision about participating in this practice.