Thanks so much for playing JtL and posting a video of your play through!
We hadn't tested on a 4K screen yet, so we'll be taking a look at scaling options for our UI elements so they're still legible on larger screens.
Just so you know, when you hold Right-Click you can see through walls to see where Roommate and Killer are. That should help make keeping an eye on Roommate and Killer a lot easier. Thanks again and we're glad you enjoyed the game!