About 71% of this 12.4% APY is decaying token emissions. The real fee yield is ~3.64%. It is single-asset, so there is no impermanent loss to drag you below holding.
Real fee/staking yield: 3.64% · token emissions: 71% of the headline.
No impermanent loss here, so you keep the same price exposure either way. The honest number is the ~3.64% of real yield — the rest is fading emissions, not income.
Source: DefiLlama. Verdict is a heuristic over public data, not financial advice.