Use cases for smart contracts on the Ethereum blockchain

Smart contracts definitely showcase one of the most exciting applications of blockchain technology by enabling secure and efficient automation of various processes. And with Ethereum being the most popular blockchain platforms, we can expect a versatile and robust infrastructure for building smart contracts.

After looking into some of the prominent industries in the crypto space, here are 4 common use cases I've come across in regards to smart contracts on the Ethereum blockchain:

• Decentralized Finance (DeFi): facilitate DeFi transactions like lending, borrowing, and trading- this helps in democratizing finance, increasing accessibility, and reducing the need for intermediaries.
  For example, Uniswap is a DeFi platform that uses smart contracts to enable users to exchange tokens without the need for an order book or a centralized matching engine.
• Supply Chain Management: automate supply chain processes in a number of ways- from verifying product authenticity to managing inventory and payments which helps in increasing transparency, reducing costs, and preventing fraud.
  For example, Morpheus Network automates the flow of information and goods between suppliers, manufacturers, distributors, and end customers through smart contracts executed on the Ethereum blockchain.
• Real Estate: enable tokenization of real estate, fractional ownership and help with streamlining transactions- increasing liquidity, reducing costs, and enabling easier access for all to real estate investments.
  For example, Propy uses smart contracts to automate and secure the various stages of a real estate transaction which also acts as a digital escrow service.
• Gaming: Smart contracts enable true ownership of in-game assets, create decentralized gameplays, and facilitate peer-to-peer gaming experiences.
  For example, Decentraland uses smart contracts to enable users to buy and sell virtual real estate and in-game assets, such as weapons or clothing, securely and transparently.

I also did come across the use of smart contracts in identity verification, but I have a couple of questions in relation to this like:
'How does the smart contract handle cases where there are discrepancies in the information provided by users during identity verification?' and 'Can the smart contract be audited to ensure that it is performing identity verification accurately and efficiently?'

I would appreciate if someone could help me understand this better. And also, have you come across some other common use case for smart contacts on the Ethereum blockchain? I would love to know more about them and hear your insights.
Thank you!