There are far less radical feminist men in general because the movement actually wants to destroy the patriarchy and gender stereotypes, third wave ‘pickme girlboss show your tits to get ahead in capitalism’ feminism is far more paletable to the male gaze.

It’s like how Joe Biden’s leftwing ethos of screw the poor to pay rich capitalists and oil companies while making lipservice to vaguely progressive ideals (vaguely progressive in 1950) is popular because it’s fundamentally anti-change where as anyone that actually wants structural change is automatically marked as a dangerous extremist and shunned.

I’ve found that both TIRFs and TERFs do have a lot of understandable distrust and hostility towards men but are in general friendly to men who interact reasonably and take on board the things being said without making the normal kneejerk responses and ‘but won’t someone think of my pennis!’ arguments.

So yeah you’ll likely find guys in most radfem spaces, except of course those designated explicitly for some purpose. Though yes I do feel being a man in a radfem space is similar to being a woman in tech or occasionally even a woman playing online video games - without the sexual harassment of course, and far less vitriolic abuse.