Does anyone else not care about masculinity or "maleness"?

I'm a straight man and I'm comfortable in my gender and sexual identity etc I just don't feel the need to do anything stereotypically "masculine". Maybe it's just because I never felt like labels or categories define you or limit you. I just do me and what I enjoy and don't worry too much about societal expectations.

But I read on here a lot of people who do seem to care about this stuff. Saying things like "the man always wants to be the provider". Talking about what it means to be a man in the 21st century, and how masculinity has changed.

I'm not denying these people's experiences, just curious about the difference- why you do feel it's important to asset a masculine role or identity? Or why not? What even is "masculinity"?