I consider myself metrosexual. Not super butch or jockey and not feminine, but no one is the least bit surprised to find out I’m gay.
I think “fem” over the last few years has become a fetish identifier in ads or porn descriptions. It often involves being young, super skinny, wearing makeup, stockings, cross dressing, etc. Few guys would have self-identified as femme ten years ago, even if they were gayer than Christmas. Now you see guys using in their OlnyFans description, etc. Times have changed.