As I have continued to look for answers, I have found that the “cutout” I’m talking about in photo above is designed for heat dissipation. Passenger side had no noticeable oil in it, but drivers side seems to have oil sitting in it.

Am I likely finding oil in there just from the excess that was blowing out of my pcv valve grommet?

As I ran the motor yesterday, I was unable to find any other leaking areas, (after replacing valve/grommet).

Any ideas are appreciated. Thanks!