4k ultra hd

Hi All knowledgeable people, I recently bought this tv after Mrs left taking the Samsung :( I can't find a way to install plex or emby. Anyone know of a method to hack/update/add one of these apps, or an effective way to stream from laptop to the TV. Wireless display is sub optimal. Thanks.

The thing is that I cannot find a single laptop with 4K screen, based on an AMD product, either Ryzen, earlier APUs, or Radeon. Why isn't there any availability of AMD 4K laptops? *** I am able to find a Hewlett-Packard HP ZBook 15u G3 (T7W16EA) with AMD FirePro W4190M. This is the only offer...