There are countless posts about trans girls boymoding in order to stay safe during transition and how it can be kind of funny, but the second transmascs talk about playing up their femininity or trying to appear like a women so they don't get hurt it's called afab privilege.
Personally I think I think of it like a game too. Like, yeah I look like a boy and if you know what trans people are you can tell pretty easily I'm a trans guy, but I can turn on my girl voice and act really sweet so the middle aged man I'm talking to doesn't want to hurt me. And they go "well, she looks kinda funny but what a nice girl." and I can leave in peace.
Let trans men do the things we have to do to get by!! It isn't a privilege or something we hold over transfems, acting like your assigned gender to avoid violence or discomfort is just part of the trans experience.
Yeah masking isn't privilege, it's literally just protection from discrimination