Tsitsipas is really the only one of those four that give me any legit stereotypical vibes. Some of his mannerisms and speech patterns give off a bit of “queer” energy. However, no one knows who’s “gay”. And even if someone comes off obviously “queer”, you still don’t really know the dimensions of their sexuality, preferences, lifestyle, experienced fluidity, insecurities, struggles, where they are in the gender, sexual, affection, romantic, emotion, commitment spectrum. But Jan Michael Gambill seemed rather overtly queer for years, was seen in gay clubs and was seen partying with Elton John, and he still flat-out claimed he was “straight” a couple times and waited till a handful of years after he retired to be publicly “out”. So, I wouldn’t depend on an overtly out player, especially top player, any time soon.