Comment by mkozlows

It's true that Filmmaker Mode might at some point in the future be corrupted, but in the actual world of today, if you go to a TV and set it to Filmmaker Mode, it's going to move most things to correct settings, and all things to correct settings on at least some TVs.

(The trickiest thing is actually brightness. LG originally used to set brightness to 100 nits in Filmmaker Mode for SDR, which is correct dark room behavior -- but a lot of people aren't in dark rooms and want brighter screens, so they changed it to be significantly brighter. Defensible, but it now means that if you are in a dark room, you have to look up which brightness level is close to 100 nits.)