Proof of work: Where you need to set up some miners (hardware) to generate the computational power it takes to mine (produce) new coins.

Proof of stake: A fixed % is set for a specific period of time for which a miner (specifically coin owner) needs to keep their coins in that wallet to generate more coins during the given time frame. The generated coins on all the addresses are the mined (minted) coins (adding up themselves to the current circulating supply) for that specific timeline that carries on till the total supply is reached. This is how PoS rewarding system works. For more on this, read this article: https://blockgeeks.com/guides/proof-of-work-vs-proof-of-stake/