What happens to your ETH when we finally transition into ETH 2.0?

I’ve been mining ETH for the last bit and thinking about making a bigger investment, when it transfers to pos, I know that people are still needed to validate transactions, and I believe I heard people will still gain rewards for validating transactions (like mining) proportional to the amount of ETH that they own. Is this true or is there something else that I need to know? Sorry just find it a bit confusing.