If not, you can look at the pictures at the time stamp. It should be self-explanatory. I sadly don't have good English-speaking sources at hand right now. The problem is that most pop science articles are horribly wrong. Here is one about general castle myths that is OK-ish: https://www.immortalwordsmith.co.uk/myths-about-medieval-cas...

I mostly learned that stuff from taking courses in university. The difference how the academic mainstream sees the medieval period vs pop culture is super crass.