Get a bright LED flashlight and shine it around the area where the dipstick tube enters the engine, check for signs of oil leaking.
Here's another possibly relevant thread:
https://www.ft86club.com/forums/showthread.php?t=103687
Looks like this guy had a bigger leak.
Sorry I can't be of more help, but the key is going to be identifying where it is coming/dripping from, if it is indeed an oil leak. In the video there's quite a bit of smoke, so I assume you should be able to see it dripping if it's an active leak.