I definitely have BO, but I can’t smell my own, typically. however, I also just don’t find the smell of sweat/BO particularly offensive.
I’ve started using not an antiperspirant, but a substance that acts like a deodorant, because my partner is VERY sensitive to smells and mine apparently sets her off pretty badly.
a stainless steel, vacuum sealed French press (coffee plunger), which I bought back in… 2011? i think? when I broke my glass one a week after getting it.