I checked my oil today, I didn't see anything in it that stood out. The dip stick indicated it was on the low side however, just a bit over the bottom hole on the stick.
I took two videos today, hopefully you can hear the noise a bit better. The first video is light revving between 2000 and 3000 rpm:
https://streamable.com/efk316
The second video is more aggressive revving:
https://streamable.com/5h9oqe
I have a service appointment with Toyota tomorrow morning. I'll update later with their findings.