OP I know what you mean, but in a different way.
I was brought up to look attractive. I could say that that just made me feel good, but my mother didn't decide all by herself what was attractive, that was determined by society and designed to be attractive to men (unless lesbians are running the fashion and beauty world?). So I was brought up to look good for men. I didn't wear clothes I didn't like, but I also didn't wear clothes that made me feel "unattractive". And the idea of "letting myself go" would mean not being put together in a way men would find unattractive. It was definitely a Bad Thing.
A few months I gave birth for the first time it dawned on me that "being feminine" was usually in contrast to "being masculine" and that was all a load of bollocks because I'd just grown and birthed a human! It was a messy, powerful, and in my case, wonderful experience. It wasn't in any way "feminine" in the way that's commonly meant, it was far too full of power for that.
My dressing started to change after that. I haven't worn anything with a flower on since then. I see another dress in a shop with dainty flowers on and sigh. I love flowers, but only in the ground. Btw I don't care in the slightest if other women like wearing flowers, I don't even notice. It's only if they're for me.
Nowadays though I am very aware of the messages my children are receiving so I wear makeup some days, don't other days (and if my face "looks like it needs colour", well that's a shame for the onlooker, but I'm fine), I wear dresses and I wear trousers, I wear sloppy clothes and I wear more put together ones. I wear jewellery and I don't wear it.
It's personally very nice to not give a shit and wear what I feel like wearing, but I want my children to see that women can present any which way and the same woman can wear whatever she wants and she's still a woman. It's not performative - now that I'm not remotely trying to look "good" aka attractive to men, I'm not giving it up for anybody - but I am aware of it and I think it's an added bonus for my kids.
I'm also aware when I meet a friend who insists her daughter is her son because she likes "masculine" things (jewellery making, drawing, going with her dad to the pub!) including "men's" clothes, that the woman she's sitting opposite to is often wearing a far more "masculine" ensemble than her daughter ever is. I'm also not dressing for her either, but I'm definitely more aware of things like that these days. I can't say for sure it never influences me, because it's on my mind at times, but it doesn't drive how I dress.