Details vary depending on country or region, but the following are some of things males who identify as trans have gained for themselves (although some of these things apply to females who identify as trans, too):

Being able to able to falsify their documents with the approval of the State.

Distorting statistics because some males are counted as women now.

Newspapers lying about "trans" issues in the form of "prefered pronouns", "inclusive language" or pseudoscientific beliefs like "sex is a spectrum" or "puberty blockers are reversibles".

Accessing formerly women-only spaces like toilets, changing rooms, hospital wards, refuges, prisons, etcetera. All of this without any regard on what women think of this or the harm many women have suffered on the hands of males who identify as trans as consequence of those "inclusive" policies.

Getting mediocre male athletes in the top levels of women's sports just because said males claim to be "women" without any regards on fairness or safety for actual women.

Forcing other people to lie in the form of "prefered pronouns" or "inclusive language" when talking about males who identify as trans, even when said males are not present. Punishing people who refused to play along with this.

Convincing everyone that not respecting someone's identity (even if said identity has not basis on reality) is an unforgiveable sin. All the while males who identify as trans can say literally anything without any consequence.

Forcing women to accept we're a nothing more than a bunch of stereotypes. Forcing women to pretend there is not any difference between women and males who claim to be "women".

Using dehumanizing language to refer to women in the name of "inclusion".

Forcing people to pretend biology doesn't matter and that sex is a spectrum or a social construct.

Being able to threath or, in some cases, physically assault dissenting women without any consequences while pretending this is not typical male violence against women.

Getting your self-diagnose recognized by proffessionals and having access to exogenous hormones and cosmetics surgeries on demand. In some places this must be provided for free by public or private health systems. All of this despite there is no solid evidence "medical transition" improves mental health at all.

Banning any research they don't like.

Banning any treatment that doesn't affir theirm "identities".