About 29% of this 8.58% APY is decaying token emissions. The real staking / lending yield is ~6.12%. It is single-asset, so there is no impermanent loss to drag you below holding.
Real fee/staking yield: 6.12% · token emissions: 29% of the headline.
No impermanent loss here, so you keep the same price exposure either way. The honest number is the ~6.12% of real yield — the rest is fading emissions, not income.
Source: DefiLlama. Verdict is a heuristic over public data, not financial advice.