ERC721-Staking VS ERC20-Staking-Machine

Last year I've shared with this sub another NFT Staking Smart Contract and since it's got some engagement and starts & forks on GitHub, I've decided to revisit it and fix some of the limitation it's design had:

You can try out my code if you want: https://github.com/andreitoma8/ERC721-Staking , but it's with fixed rewards. If you want dynamic ones, I recommend you try adaoting the Synthetix Staking Contract for EREC721 Tokens. Whatever you do, don't ever loop trough all the NFTs.

After the ERC20 Staking Library I posted here a few weeks back it's time for a ERC721 one.

Hi! Check this out: https://github.com/andreitoma8/ERC721-Staking, it's tested and working as intended. It's crazy how alike our SCs are! I was thinking about using an array for the tokenIds staked too, but simple is better imo and I think this is better done in frontend with something like Moralis Database to lower the gas fees.

Most articles I've found on the topic are extremely basic and focused around investing. I'm trying to understand if there's a difference between the 2 concepts. What I understand through staking is a contract that at its core allows users to lock in a certain amount of fungible tokens that they then accumulate interest on. I've seen yield farming described the same way, except people usually mention that stakeholders are incentivized to participate in the process by receiving fees from certain transactions. I guess that makes sense, and I've seen a few contract examples that implement this basic idea (here or here, however they don't really focus on the staking/rewards pool/incentive side of things (how do the token owners & stakeholders benefit from the whole process).