I currently pay for Netflix 4K. But I want to watch the content in 4K on my laptop and Netflix won't let me do that since I'm using Linux/Firefox.

I also have a Jellyfin server and rip my BluRays, so I'm used to ripping my own media to stream on my local network. I'd like to rip some of the newer "planet earth" style documentaries from Netflix which is presented in really beautiful 4k video. Is there a guide somewhere which will walk me though how to do this? I imagine I'll have to buy some additional gear to do this, but I'm not averse to that.

If anyone can point me the right direction, I'd be grateful.