Earlier quoted context omitted.
Depends what we mean by 'crack'. A few years ago I was surprised to see that Netflix in Chrome on Linux didn't prevent screen-capture. If I recall correctly, On Windows, it won't let you screenshot Netflix - you get a black box instead. Failing that, it's possible to record high-quality analogue output from, say, a Playstation 3. Failing that, it's always possible to point a camera at a screen. Piracy of video isn't…
Only Windows with Edge can play 4k. Chrome is 720p.
Apparently it's possible to trick Netflix into 1080P on Chrome, in at least some cases - https://www.ghacks.net/2018/02/12/watch-netflix-in-1080p-on-...