From 1 to 2 meters… depends of my position.
Seated at the start of the couch it is like 1 meter… lying on it can reach 2.5 meters.
Unless you've got a really small 4ktv then that's probably too close. I mean if that's how you like it then that's fine, obviously, but yeah you're probably gonna find a lot of games too soft because developers will target the mass of people who are like 1.5x (and more) screen size away from their TVs.
I used to sit about 1.2x away from my 65" tv and I found 1440p or less a bit hard to take, and blatantly less sharp than 4k. So I rearranged things to like 1.4x away and I still see almost all the same details but without feeling anything like the same sacrifice at lower resolutions. For me it's an overall better experience.