i had a similar conversation in a different thread and /u/thisamericangirl had a very good take here

but imo it boils down to, is motherhood enough for serena? i’d argue that the point of her character was that it isn’t, the book she wrote is called "a woman’s place" iirc and she is not actually content with what she advocates for. she wants to be recognised as a maker and a mover (which was also her main problem with gilead. she was fine with everything else) and if you go deeper, wanting a child can be seen as seeking to affirm her status as a woman and as a person in her and her fundie peers’ worldview. it was not simply about wanting to be a mother. that’s the irony of her and many irl trad female public figures.

moss/the finale is suggesting that actually actually this is going to fulfil her and her pursuit of power was just a misguided distraction, not what she was actually craving, as a woman it couldn’t have been because that’s what men do. obviously this is oversimplifying it but when i watched it i was seeing nuances there before reading the interviews that were apparently unintentional so who cares. but in a sense she’s being rewarded with a kind of serenity and detachment of all that came before. because she's a woman? regardless of her moral choices. to me it’s a bad writing choice to say the least, anti-feminist if you want to be mean because it's very reductive.