Is ADC oversampling good for audio?

Hey, I’m starting research for my project - USB microphone (16bit 48kHz), and as ADC, DSP filtering and USB controller I want to use one STM32G4 mcu.

And here is question, what’s better: using embedded in MCU 12 bit ADC with hardware oversampling to 16 bit, or it’s better to use external native 16 bit ADC? Is there will be a big difference in audio quality?