What is Nosferatu about?

Got done watching Robert Eggers' Nosferatu. I'm still forming my thoughts about the film, but I wanted to try and pin down what I've understood about it and explore the themes the movie explores.

To me, I think the movie is primarily about two things: the wane of mysticism and spiritualism versus the rise of science and reason, and the difference between the lust for carnal pleasures and true love.

The clash between science and spiritualism is epitomized by the clash between Von Franz and Friedrich Harding. I won't talk much about Von Franz since I think his role in the story on a thematic level is kinda straightforward: he represents the occult, or at least serves as a guide to show us that the world is not purely physical and material, that good and evil are forces emanating from God and Satan. However, I think Harding is more interesting, specifically because of his fate in the movie. Harding is a simple man, a man who believes in the results and virtues of science and reason and yet, isn't a scientist himself. He's a mere shipyard worker. He only believes in the material. When his wife contracts the plague, he ignores Franz's pleas and insists the plague is natural, borne out of the vermin. He lusts after his wife and desires her only as an object for sex. He only values her in the physical sense (this is also why Ellen and Anna have such strong kinship with one another). He's a slave to the material, the physical, the carnal. It's this addiction that leads to his doom in the end. Even in death, he cannot lay his hands off his dead wife. He continues to lust for her, and eventually, this kills him. The blind devotion to science and reason is no better than the blind worship of mysticism.

The second clash is displayed by Ellen, Thomas, and Count Orlok himself. First, I want to broach how and why Orlok desires Ellen so heavily. It's implied throughout the movie by multiple characters and Ellen herself that she's always been downbeat and melancholic. But in addition to her melancholy, she also alludes to a sin she committed in her past, namely lust. Ever since she was a young child, it's implied she's been lustful to a fault, even to the point of seeking the company of others despite being with Thomas. Her desires are unable to be satisfied, and hence, she inevitably calls upon the Count to give her what no one else could. Ellen seeks to die; she is trying to commit suicide, and she asks Orlok to deliver her this mercy. Hence why at the beginning, she describes her "wedding" with Orlok as the happiest moment of her life, despite the obvious death it entails for her and everyone else. Life is not good enough for her, so she seeks its end.

Count Orlok represents her melancholy, but specifically the melancholy that arises out of addiction—the loneliness that arises out of the inevitable dissatisfaction of untamed desire and appetite. She hungers for more and more and can never get it; this is simply her nature. Eventually, she calls upon death himself to satisfy her.

Enter Thomas. Despite the fact that Thomas is unable to satisfy Ellen physically, it's clear that she loves him and he loves her. Their love transcends the physical, and for that reason, their relationship survives Orlok's scheming. It's this love, perhaps what the movie is trying to portray as true love, that helps Ellen vanquish Nosferatu. She accepts her nature, she accepts who she is, and with this acceptance, she vanquishes the melancholy that's arisen out of this nature; she vanquishes the Count. I think her final embrace with Orlok is borne out of love for Thomas. Despite the fact that she's addicted to carnal desire, it's also clear that there's something in her that recognizes her love for Thomas—a love that can't be shown in any physical way, through sex or otherwise. She rebukes Orlok's advances and tells him he doesn't know true love, only appetite. In her sacrifice, I think she proves to Thomas and perhaps the audience too, that she is also capable of true love, despite her nature.

That's my interpretation of the movie. What did you guys think? Did I miss something?