The oil leak appears to have come from the intake/valley pan end sealant, but it will be easy to spot now, if it re-occurs.
IF THE IMAGE IS TOO SMALL, click it.

This video is long, but worth watching at least until the intake is back in.
https://www.youtube.com/watch?v=tihalo8hgt8&ab_channel=vehcor

Owner caption November 2021 · Photo 43 of 123