I think a lot of things fall under the umbrella of “dated.” The question is to what degree it matters. Some of the hair styles in Star Wars are dated but that ultimately doesn’t really affect much and certainly doesn’t make the film as a whole any less timeless.

Something like a “dated” mindset towards perversion could be a bit more of an issue.

I actually just watched The Quiet Man for the first time, and a lot of it is a product of its time and a product of the time it’s set in - the characters in general have a lot of different attitudes than we do currently and that’s okay because that’s the time it’s depicting. But a few moments are more definitely “dated.” In particular, the scene in which John Wayne forcibly and carelessly drags Maureen O’Hara for miles is played in the films for laughs and we aren’t supposed to think any less of Wayne’s character for it. But, watching it now, it’s just pretty fucked up, honestly and not very funny or endearing in the least bit.