G4 and M4 and up only, unfortunately, which don't come in 42".The LG panel doesn't have MLA on smaller sizes, from what I understand?
Honestly we've got it pretty good unless you have this need for more than 144Hz in a big 4K panel. I personally don't see the attraction. A year and a half with a 4090 even at 4K it feels silly to bother with anything 120Hz (on my C2). Games that would benefit from more I'd probably want a smaller display.