You're being paid 6.60% to absorb price risk. Only ~6.36% of it is real fees (the other ~4% is decaying emissions) — and they stop covering impermanent loss if YMVOG-USDC diverges more than ±108%.
Real fee/staking yield: 6.36% · token emissions: 4% of the headline.
Break-even fact: a ±108% move in YMVOG-USDC erases a full year of the fees you actually keep (~6.36%). 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.