The oil sending unit is something to check out if the leak persists. I’m going to monitor and see what happens. If no more leak, then I think it has something to do with the oil filter and gasket.
On my pickup, the filter is mounted in a spot that is difficult to visibly inspect. I have to remove the front skid plate to change the filter. Just getting a band filter wrench on and tightening was a major hassle without removing the skid plate.