My newest MacBook reeks of strong adhesive from the vents.
Googling revealed hundreds of similar complaints, it's allegedly a solvent they use, perhaps flux. I thought it was the battery.
Many claim "they all smell like that". Some (insane) people like the smell, I assume they sniffed glue as kids.
Unfortunately it's the last one I buy. I won't tolerate a smelly laptop.
[1] https://forums.macrumors.com/threads/unpleasant-solvent-like...