You can find many videos of people walking around cities in Iran - not only are plenty of women not covering their hair, there's plenty of dyed hair too. Dress is a bit more conservative than western countries, but not by much, and women are obviously free - and feel safe - to leave the house unescorted. Iran has liberalized a lot compared to the post-revolutionary period.
Mahsa Amini was famously beaten to death by Iran's morality police in 2022 for the crime of not wearing a hijab. Even modern-day Iran is incredibly oppressive to women, and is currently ranked #113 on the Gender Inequality Index.