If you look up Furiosa/Max fanfiction you'll notice every single one has femdom in it. It's seen as such an essential part of their relationship that people don't even bother to mention the femdom in the description. It's expected to be there.
In my last journal when I said Max and Furiosa's relationship was very femdom'y a lot of men (and only men) complained and said "No it's not! They're equals! How is that femdom!?" And that's exactly it. They are equals, and that's what makes it femdom instead of boss and subordinate.
It's important to understand that there's a very big difference between femdom and feminism.
Feminism is about equal rights and respect between men and women. Women are seen as weaker and "lower" which is why it's called feminism instead of equalism. Feminists do not wish to drag men down to the level they're at in society now, they wish to come up to the level men are at.
Femdom is a personal relationship between two (or more) people who have all agreed that this is what they want. They don't wish for the whole world to be like their relationship dynamic. They're just doing their own thing.
It's also important to know that femdom isn't just the popular leather and latex stuff we always see on TV because it's more flashy and fun to look at. It's so much more and doesn't even have to be sexual at all.
I'm not pretending Mad Max Fury Road is a real femdom movie, but I'll try to explain why Max and Furiosa's relationship has that vibe.
When Max and Furiosa first meet, Max is like a scared animal, ready to attack out of fear. Furiosa recognize this immediately and disarms herself to try and calm him. She still doesn't trust him and at that point he's just some crazy dude in the way, so as soon as he's distracted she tries to kill him. She's better than him at shooting and driving, but he's physically stronger and beats her in a fist fight. When the kill switch stops him, Furiosa tries to talk with him to figure out what he wants. She wants to move on, so how can she calm this frightened and confused man down. And like a scared animal the first step is to get the restriction on his face off.
When they head for the rocky pass Max gets nervous and tries to take control by grabbing the wheel, but Furiosa tells him no, Max backs off and finally seems a bit calm, and that seems to be the moment they both start to realize this is how their relationship is going to work. Max is still scared and keeps Splendid nearby just in case Furiosa tries to cheat him, but he does as he's told and Furiosa seems to have realized that please-and-thankyous's doesn't work. Max needs orders. That's what he responds best to. It's very obvious that orders calm his messy brain by making him focus on the thing he's been told to do.
In other words, she didn't start out trying to dominate him, but she now knows that's what he needs right now.
So it's very important that Max beat her in the fight when they first met. She hasn't physically forced him into submission. He willingly gives up control to her because he too notice that he's doing better that way.
From then on Furiosa doesn't doubt if Max will follow her orders. He will. And Max doesn't try to control her. He makes suggestions because he's not some chained up slave boy who's only allowed to speak when spoken to, but he always waits for Furiosa to make the final call. Like when Splendid falls off the war rig and Max says she went under the wheels. He's driving, but it's Furiosa's decision that they keep going.
And Max is the only one acting like this. When they're driving at night and Furiosa says someone should watch the back, Capable says she'll do it. Furiosa firmly tells her no, but Capable does it anyway. There's no doubt from everything Max had done up to this point, that if it had been him who had been told not to go back there by Furiosa, he would have sat back down.
And he doesn't act like that with others either. The wives can try and tell him what to do, but there's no guarantee that he'll do it. He has submitted to Furiosa, and only her.
Max hallucinates when he's stressed and scared, and as soon as he and Furiosa parts ways in the dessert, it starts up again. He quickly returns to her.
So their relationships isn't like this because he is lesser than her. They are equals. She trusts him with her life. It's just the most natural dynamic for them. Furiosa doesn't hold an iron grip on him. He's free to leave any time he wants, but he feels less confused and scared with her, even if he would be in less danger alone. He even gives up his own blood and tells her his name to keep her with him.
One scene that is exceptionally femdom'y is the rifle moment. Furiosa just kneels behind Max and doesn't even have to tell him what to do. He hands her the rifle and let her put it on his shoulder, effectively making himself a thing for her. She even tells him not to breath, controlling him down to the most basic human need.
All of that of course serves the purpose to keep the rifle steady so she can shoot the people trying to kill them, but no one's saying femdom can't be practical.
So yeah, I'm not saying Fury Road is a proper femdom movie, but Furiosa and Max relationship is much more femdom'y than a lot of supposed femdom relationships in movies because it's based on willing submission and mutual respect between them.
That's what all those fanfiction writers have been picking up on.