The answer, perhaps unintentionally, is in your response.
“Perform”
That’s what it is…performative virtue signaling.
I could not care less what someone does in the privacy of their own bedroom or home or car or wherever they choose to express their love. However, forced, performative shows of “support” look, feel, and are strained beyond belief.
I work with a large number of members of the gay community. Doesn’t bother me a bit until it’s so “in your face” that it feels performative and purposely in your face. But, I also fully embrace the freedom to be oneself, within reason in the professional workplace.
As for the dressing room, I’d venture NO-ONE could care less, but the media scrutiny and non-stories that would come out of the woodwork are simply a sideshow that no-one craves.
Sadly, the “lad culture” that follows the men’s game is the problem. Indeed, one is often surprised when a professional female footballer marries a guy instead of another girl…yet no-one seems to care about lesbian footballers!
It’s not being gay that is the problem, it’s “real men’s” attitude towards it! That only serves to pollute the freedom to which we should all aspire for everyone.