Animemes

ways to make themselves smell nicer

true, perfume etc. is nothing new, probably older than cultivating plants.

chance you’re just getting used to the smell

Maybe slightly, but as soon as I'm using soap, I quickly notice stink after a short time after showering as counter-example.

I think the body just has use less fluid to nurse the skin after washing with just water, and than there's a slightly different skin-flora I think.

I sometimes use DIY deo (basically soda+coconut-oil) when I'm noticing stink, but rarely, that works quite well, while being somewhat neutral in smell.

most of modern society likes when people do not smell like BO

I'm not so sure about that. Probably not a strong stale-sweat BO, but there are studies, where fresh sweat had IIRC a strong arousing effect on the opposite gender. I guess it quite depends on the BO...

I may not be the norm, but I'm somewhat opposed to most of the often penetrant deo smell. I also would consider my sense of smell rather sensitive (I hate the fumes of motorcycles and cars in the road-traffic, and often hold breath there)