The RBA flagging a risk doesn't mean negative equity is some widespread inevitability - it's more about identifying *who's* vulnerable, and that depends entirely on your specifics rather than the market mood. You'll want to know: what's your loan-to-value ratio (how much did you borrow versus what the place is worth), how comfortable are your repayments on your actual income, and did you buy recently at inflated prices with minimal deposit?
If you borrowed, say, 90%+ of the purchase price at the absolute peak and rates have hit hard on your serviceability, yeah that's the scenario the RBA's worried about. But if you've got a decent buffer - whether that's 15-20% equity already or rock-solid income relative to repayments - you're probably fine even if values dip a bit.