(More information on whether this is the cheapest AMM in the entire web3 space coming soon 😉)
Every swap is eligible for yield, randomly paid by an offchain worker. These rewards are virtually instantaneous, and are tied to the reward distribution.
Long Tail is a concentrated liquidity AMM with a custom fee structure per token address. Each pool is assumed to be sUSDC (Super USDC aka fUSDC)/other asset pool. This means that every swap utilising Long Tail is rewarded with yield.