Burnt smell passengar side engine room and inside

My wife complained about it smelling and smoke coming from under the hood last week after driving for 20 minutes or so home from work. It had been sitting for a lil bit before I came home. I checked oil, coolant, inverter pump, error codes on the ODB2 reader, all ok, and then cranked it it up, got a slight whiff of something burnt but was unable to locate it. I started it and idled it several times in the garage over the weekend. Eventually the smell went away and I dismissed it as something gotten onto the exhaust from the outside and cooked off.
Then today, it came back of course. She drove to work ~ 10 miles ok. Then when she drove home she noticed it again. I cheked again and after idling it again for 7-8 minutes I noticed the smell got stronger and eventually I saw some smoke so turned the engine off. It was coming from up the front passanger side it seems, a bit down, next to the light housing. Just out of curiosity I measured the temp around the engine bay w a Harbor Garbage IR thermometer - the block ranged from 80f to 112, radiator and hoses were around 80, nothing stood out.

But I'm at a loss on how to trouble shoot this further anyone got any ideas or experience to share?

TIA!