4k monitors similar to the Dell P4317Q or LG 43UD79-B

[Scruffy90]

I'm starting to see a lot of interesting monitors allowing for split screen between multiple inputs such as the Dell P4317Q or LG 43UD79-B. I have an ultrawide that supports picture by picture, but it makes both inputs a square format (hate it). Are there other 4k monitors that have split screen between more than 2 inputs? Are there once that are large enough to replace a large tv? (would love a tv with pbp, pip, splitscreen)