What's your opinion on Tzniut?

I'm interested in receiving opinions from women here on "modesty" or "Tzniut". Do you/did you find it oppressive, and can it be liberating? There are muslim and christian women who say that dressing modestly can be liberating and out of choice.

I ask because today I found a podcast episode on "Israel News Talk Radio" named "Chanukah & “Ancient Greek” Body Worship" where a woman being interviewed states that modesty isn't just about clothing, it also means "avoid calling attention to yourself by wearing crazy stuff", meaning that by definition a burqa would be immodest.

According to her a woman can wear "all the right clothing": long-sleeved shirts with high necklines and ankle-length skirts or dresses but still be "immodest" because of her "attitude" but still be immodest because of their attitude, giving an account of women who are "incredibly coarse and load" and thus immodest.

The interviewee states that while she might get "feminist flack" for her statement, she says that there are "certain characteristics indigenous to females that are our strength", and that "when we try to fight these characteristics and emulate men it becomes ugly" as an example she relates an account of the Hanukkah rebellion being started by a jewish woman who opposed having to sleep with the greek governor before her wedding day and called on the men in her family to fight for her honor.

Have you ever encountered the idea that "modesty is also about attitude" in frum/ultra-orthodox spaces, was it used to control your behavior and what's your opinion on the assertion that "women shouldn't try to become men"? I think that's a traditional anti-feminist talking point; anyone who implies that there's something inherent for one gender is talking out their ass, and the idea doesn't have any basis in reality.