The difference is what was considered acceptable. My father in law (who is an asshole) told a story about how they would make comments to a woman he worked with about her boobs. This was in the 70s. She didn’t have much choice but to put up with it. There was no HR to go to, or they wouldn’t care. So they kept doing it.

Nowadays people are a lot more cautious at work. I know it’s just one setting, but that’s a great example how things have changed generationally.