You're being paid 0.63% to absorb price risk. Only ~0.63% of it is real fees — and they stop covering impermanent loss if CRVUSD-TBTC diverges more than ±25%.
Real fee/staking yield: 0.63% · token emissions: 0% of the headline.
Break-even fact: a ±25% move in CRVUSD-TBTC erases a full year of the fees you actually keep (~0.63%). Whether that move happens is up to the market — but any emissions inflating the headline will fade regardless.
Source: DefiLlama. Verdict is a heuristic over public data, not financial advice.