I decided to read into this. One woman managed to get paid sick leave on account of her homosexuality.

https://slate.com/human-interest/2013/09/calling-in-gay-did-70s-swedes-really-get-paid-sick-leave-for-being-homosexual.html

I remember “calling in gay to work” in the US around 2007. I was working at a retail store and my manager was confused but supportive.