Yes, ESP-S3 is a very good MCU and the ADC is better than in previous versions. But anyway it would work fine.
You can create the divider with 470KΩ and 1MΩ resistor, put the 100nF capacitor, switch off the wifi and calibrate.
You could even take several samples every time and average them, but I think that you don't need a lot of precision anyway.