A:Answer Hi Ariel,
The Pixel 8 definitely has a better selfie camera than the Pixel 3. The Pixel 8 has a 12MP selfie camera with autofocus, while the Pixel 3 has an 8MP selfie camera with fixed focus. This means that the Pixel 8 should be able to take sharper and more detailed selfies, especially in low light conditions.
I hope this helps!