I see what you mean. Not sure why Xinhua agency said so. IIRC the Chinese governments start their FY at Jan 1. Perhaps it is close to the end of FY2023 so the government is not expecting big changes to its income and spending? But accounting and economy are not my fields.Fiscal deficit is the difference between Govt income (Tax, dividend, duty, etc) and spending (social, defence, health, education, interest, etc)
So when you increased the debt, the debt ratio to GDP is increased to but the fiscal deficit has nothing to do with debt directly. Yes the higher the debt will increase the fiscal deficit as you have to pay more interest payment