Not just Zoomers. I'm nearly 40 and also thought it smelled weirdly good. Though there's a difference between the original LCD and OLED models, with the latter's smell being much weaker and more like generic plastic off-gassing.
Confirmed: Gen1 LCD smelled about the same as the gen2 LCD units, but the OLED version doesn't smell as strong/good. I still huff it. I'm also over 40.
On an M4 Macbook Pro it's mild and faintly sweet but not really pleasant the way the LCD deck is. Requires a lot of heat for a long time to become noticeable. Vent is less convenient for sniffing.
Some conformal coatings, which protect PCBs from dust and moisture, can emit ethyl acetate or butyl acetate if they weren't fully cured. The smell is sweet but absolutely revolting.
Apparently it's a meme and Zoomers are huffing their Steam Deck exhaust. Hmm.
From the descriptions I've read the smell is similar or identical.
Maybe they use the same magic ooze.