Australia employer went into liquidation: can FEG cover unpaid wages?

Potentially. The Fair Entitlements Guarantee is a safety net for eligible employees who lose their job because the employer enters liquidation or bankruptcy and cannot recover certain entitlements another way. FEG can cover up to 13 weeks of unpaid wages, annual leave, long service leave, up to 5 weeks pay in lieu of notice, and redundancy pay up to 4 weeks per full year of service. Official source: Department of Employment and Workplace Relations. Guide: https://getinstantlaw.com/employment-workplace-problems