When I filed my N-400 the estimate showed 7 months.
The case took 3.5 months.
On day of my oath, it showed 3 weeks until decision.
Unless you want to drive yourself crazy, you can ignore these estimates. They are not accurate at all.
Anything under 12 months is OK. By that I mean not estimate, but you should not be worried until April 2026. If your case is not decided in April next year, then yes, it's time to worry.