That seems very possible. Though, honestly, I don't know much about Fe in itself. I do, however, understand more how I seem to operate via Fi:
I find that I am agreeable when I need to be. When I speak to people I feel my "different" ideas won't offend them, I tend to speak my mind, which can also be considered keeping me to the definition of agreeable.
I filter information kind of like a spam filter, so sometimes if someone says something I thought belonged in "spam" I will get either aloof, tense, or have to try and pause my filtering to care and see if I can redirect the conversation where what the person says to me no longer goes into "spam".
I've found this habit of pausing to care (it took probably years to realize that this was helpful) has been the most mutually beneficial in interpersonal communication. Perhaps this is something that people with Fe do naturally. I, however, do put a lot of mental energy into getting this to work out.
And... This is why I find myself unable to have too many random people interactions in one day. I need to be prepared or I'll just be drained due to my agreeableness
IME, ISTPs and INTPs seem to understand and do things they way you do.
I tend to find that INTJs and ENTJs don't care too much if their ideas will offend others.
So what you are saying sounds more like Ti.
For a "woman", however, I am probably not considered agreeable.
IME, people seem to only mention female INTPs, when they are asking "How can I meet one?" So they seem to be extremely desired as companions, both sexual and intellectual.
They also seem to have a reputation as being competent and thoughtful, unlike young male INTPs.
I find that female INTJs are only offensive, when they say things that would offend people even more if they were coming from a man.
If I turn down my agreeableness, people who are not used to seeing a woman actually have an opinion or state truths or state facts get defensive. I hope one day I'll be able to speak without prejudice or at least in a way that overrides prejudice.
When male TPs turn down their agreeableness, they tend to get punched in the face.
You'll know when men are fine with a woman actually have an opinion or state truths or state facts, because when you do that, at work, you'll get treated like dirt, and socially, you'll get a punch in the face.
Now, you can argue why men are like that.
When men are in a situation where they feel comfortable to be vulnerable, they often are extremely open and supportive. So men aren't disagreeable by choice.
But consider if you're in a troop that is defending against an army like the Germans in WW2, and your CO is unwittingly leading you into an ambush, because he hasn't seen the ambushers and you have. Sometimes, you tell him, he notices them too and you avoid the ambush. Sometimes, , you tell him, he looks around and still sees nothing and continues on ahead. What are you going to do? Walk off by yourself? How long will you survive by yourself, surrounded by enemy soldiers, without other soldiers to back you up? So you HAVE to get him to stop, and he probably won't do that unless you are prepared to say and do whatever it takes to get him to stop, including insulting his wife and punching him in the face. Even if he beats you up and sends you to the brig, that's got to be better than you and your buddies being shot to pieces.
So you have to understand that men evolved to be disagreeable for a reason. Being too agreeable as a man tends to mean that you're the type of guy who, when he KNOWS people are about to do something dangerous and harmful, won't speak up and say anything.
Now, you can argue why women are traditionally not disagreeable.
Traditionally, men chose dangerous jobs like going to war, because women are much more valuable. If most of your army gets killed, but they're all men, then you can easily repopulate in a generation, because one man can impregnate thousands of women. But because of the way pregnancy works, if even one woman gets killed, then other women aren't going to be able to get pregnant more often just to make up the numbers from the loss of her future offspring. So any job that risked lives, would be much more damaging to your family, your tribe and your society, if it was a woman that did that job but not a man.
So largely, when it came to the jobs where not being willing to be disagreeable would cause deaths, women tended to be dissuaded from taking those jobs, because they were too valuable for the long-term survival of the species, and men tended to be forced to take those jobs, because someone had to do them and you couldn't afford to leave them undone long enough that women would get fed up and do them.
Women simply don't HAVE to be disagreeable, and being disagreeable is generally considered rude.
You can see this in Jewish culture. Jews in general, generally do not consider arguing to be a sign of disagreement, but a matter of clarification. This is especially true for religious Jews, as many of the males have spent years in Yeshiva, arguing over points of Jewish law at the top of their lungs for 10 hours a day, 5 days a week. In lots of Jewish families and Jewish communities, it's perfectly accepted and even expected that the woman argues with the man. If a woman doesn't argue vociferously with men, it's considered abnormal.
You can also see this more in working-class families, where the women insult and hit their husbands as hard as their husbands insult and hit them.
So, in Jewish culture and in working-class culture, men and women being disagreeable is just being normal, while in Western middle-class culture, men and women being disagreeable is seen as a personal attack. Men have to regularly exercise their skill at being disagreeble, for when lives will depend on it. So men often offend people and pay a high price for it. But they have to avoid the trap of losing their ability to be disagreeable in a way that makes people take notice to what they are saying, or they'd be unsuitable for the jobs where lives are depending on it.
Women used to never have that problem, and so the most sensible thing was to be agreeable where possible.
As a result, women evolved to develop complicated social structures around being communicatively agreeable, and men evolved to develop complicated social structures around being frequently disagreeable, and where not disagreeable, being silent and uncommunicative.