More on the video quality .. it looks like oversharpening artifacts amplified by low bitrate. You may find your camera settings DO have an effect in YouTube Studio (or whatever) as there's a common underlying API. The defaults do seem aimed at people who make cat videos in Portrait Mode.
The audio is perfectly usable but sometimes the bass seems to come and go like in high wind. Maybe dynamic range compression or limiting? It's only a subtle effect.
Anyway, tweak away until you perfect it. I'd start by pushing the bitrate.