2021 Tacoma 6 cylinder 4x4 whining noise

Truck has 3k miles on it. I get a low pitch whining noise when accelerating slowly. The noise is intermittent and more noticeable when cold. Anyone else experience this and or know the fix. I have a feeling this will be hard to recreate when I take it in for service.
Other issues I have had. I bought truck new in Massachusetts’s. Drove it to florida and whenever I stopped for gas I could smell rubber burning like wires. This eventually stopped after 4-5 tanks of gas. Not sure if related.
2021 Tacoma SR 4wd 3k miles, 6 cylinder

 

Belt noise? My taco whines on cold starts, I don't pay too much attention to it tho

 

I get it too in my 21 TRD OR.

it’s driveline noise of some sort. Sounds like it’s supposed to be there. Not worried about it personally.