With the step bar hanging down, I was limited how far underneath the truck I could go. If I get time over Thanksgiving I might jack it up for a better look. It's definitely engine oil, that much I know.
Just noticed some small drip marks under my 2020 several days ago. Looked underneath and it's in the same area as everyone else's. Oil on the frame by the back edge of the driver front tire and also felt that drain tube/channel and it's got oil in there as well. Last oil change was June/July...