Depends on the workplace. I do it just now(all though I do do it without any exhaust vape(about 95%), take tiny hits.) The workplace is has a high proportion of smokers and ex-smokers though, older. couple of us do it at our wee group of desks. Had no complaints.
Saying that though, we're moving from an industrial unit to a customer facing office at the end of the month, so that'll rap that on the heid(no a bad thing tbh, will probably be conducive to me in giving up, or at least massively cutting down on vaping.). I'll even need to wear a shirt to work!
So, I've not even asked, but you just take it as read that it'll be a no go in that environment. I'll even mention to the others in-case they haven't clicked. I'll need to find somewhere private to have the odd sneaky vape. No like smoking, you can just jump into the kitchen and puff away in private.