is now on kino lorber 4k
I don’t believe so. The Kino Lorber version is close, but different elements.
Incorrect. It’s the USA Theatrical version, 162 minutes, on the Kino Lorber 4K+BD. https://www.blu-ray.com/movies/The-Good-the-Bad-and-the-Ugly-4K-Blu-ray/283312/ https://www.kinolorber.com/product/the-good-the-bad-and-the-ugly-4k-uhd
There’s a longer cut released in Italy on 4K+BD with a fugly piss yellow filter, but there’s that. It’s 175 minutes https://www.blu-ray.com/movies/Il-Buono-il-Brutto-il-Cattivo-4K-Blu-ray/300959/
Both are SDR aka BT.709 colorspace.
Image comparison: https://caps-a-holic.com/c.php?go=1&a=0&d1=15793&d2=17363&s1=166895&s2=192955&i=4&l=1