Yeah seeing the original I suspected retraction settings since it was mostly in places with lots of retractions.and long paths even out and look smooth.

This fixed the under extrusion which seems to confirm it’s a retraction problem but disabling it entirely you’ve got those oozing artifacts where moves happen.

I’d suggest using a small value for your retraction and probably take the time to use teaching tech or ellis’ tunning guides to tune your retraction settings.