Does Uniswap use ERC-20?

Could you clarify for me, does Uniswap indeed utilize the ERC-20 token standard in its operations? It's a crucial aspect of understanding the interoperability and functionality of decentralized exchanges like Uniswap within the Ethereum ecosystem. Given the prevalence of ERC-20 tokens, it's essential to ascertain if Uniswap leverages this standard to facilitate seamless transactions and interactions with various digital assets.