Honestly 2k is fine for most tvs, I wish that became standard. Imo 4k should be reserved for computer screens and the like, that are less than a metre from you, most people can’t really see the difference anyway.

Also side rant, drives me mad when people are more worried about resolution than bitrate (not directed at anyone here) . I have a friend who “can’t stand watching things in 1080p” but half the 4k streaming content is compressed to hell.