>People commonly display their hetero marriages etc. at workplaces too
what :D Don't see a single sticker about those and no people don't go out of their way to flaunt their marriages at the workplace. There is a place that is flaunted though, and that is on the behind of their car. "Just Married". How those are used is at the right scope and visibility too.
>If either of those cause division in a workplace, that's a matter for HR or legal to resolve.
If you immediately go to HR (and expect there to be a HR, and for them to take you seriously for minor things) to balance interpersonal issues at work that might just be a sign those issues wouldn't be there without you. Just don't bring your issues to work, be a human.
>it's unclear which of these are brought into offices.
Well I hope for the sake of the users they don't. Sowing discord doesn't reduce just personal success but can soil any project.