I'm sure it depends on the industry and the circumstances. Way back when, I worked in the US oil industry as an engineer and I remember one rig superintendent in particular who basically couldn't get out a sentence that wasn't punctuated with some cuss word or other. But even in the 90s in tech, some level of cussery was pretty normal. It's definitely true, at least at large companies (and events) these days, anything other than the very occasional f-bomb, especially in public is definitely frowned upon.