that's.....unfotunately true actually
gay hollywood writers seem to think making characters like this
is good representation
the CW's Archie Comics Drama riverdale is the most noteworthy example I can think of
in Archie Comics they went out of their way to NOT make Kevin be a stereotype, he acted just as lawfully masculine as any of the other guys in the comic do, and the only Gay thing about him was that he fell in love with other guys, he even almost ended up hating Veronica because when she found out he was gay she tried to turn him into gay "gay best friend" and started asking him for stereotypical favors like giving her a makeover(basically she treated him like shit for being gay) so he told her off
in Riverdale he's loud, bitchy and LOVES being called a "gay best friend" basically he's Kurt Hummel with a less effeminate voice