I could deal with this for maybe a week. 6 years is just mind-bending. Incredible endurance/tolerance.
What is it with people in our field that this is so commonplace? There are few things worse than a room full of IT people with the windows closed. "It's the smell" as Agent Smith said.
Luckily for my coworkers I am usually remote.
I then learnt several tricks on how to wash my clothes properly, and the problem has gone away completely. Butyric acid stays in your clothes for a long, long time unless you use the right chemicals. I went from horribly smelly guy to no odour overnight.
I now soak all my T-shirts in a bucket with baking soda, rinse them and then put them in another bucket with diluted vinegar, then finally, normal wash. If you have white "pit stains" from deodorant, you want to clean that stuff off. There are special cleaners for that. I do this once every 6 months, and it's enough to keep it all fresh.
Being smelly all the time is a major knock to your self confidence and self image, it's worth the 30 minute hassle twice a year!
If it did what it said on the bottle I'd be fine with it, but it doesn't actually deodorise anything. If you or your clothes are dirty the only way that takes away the smell is to wash, adding another smell on top of it is not a solution.
If they want to make a deodorant they should sell bottles of chlorine gas instead, but then they'd have to answer to the OPCW, never mind the FDA.
Before the pandemic I worked with a lot of lycra biker types who would bike in and then shower at the office, and their wet towels made the whole office reek to high heaven. I mostly don't care about people's actual BO, but I suspect that I'm very sensitive to certain fungal VOCs. They give me migraine-like symptoms. I know some hoarders who haven't taken a shower in years, there's a kind of penile and scrotal aura in the air around them. It's not pleasant, but it's not even on the same scale as mouldy towels and clothes.