Building a TV Streaming App UI in Unreal Engine — UMG or Common UI?

I’m working on a TV-focused streaming app concept in Unreal Engine and I’m trying to figure out the best approach for the UI.

The app is mainly intended for a TV/remote-control experience, so things like focus navigation, smooth transitions between screens, thumbnails, menus, and video playback are more important than mouse/touch interaction.

For a project like this, would you recommend building the interface primarily with UMG, Common UI, or a combination of both? I’m also wondering how well either approach holds up when the UI contains a lot of poster/thumbnail images and animated elements.

I’d especially appreciate input from anyone who has worked on a TV, set-top-box, or streaming-media style application in Unreal Engine. Are there any UI architecture or performance issues I should plan for from the beginning?

If im not mistaken Common UI just add gamepad support because of fortnite. UMG doesnt have device support. You can either create your own from scratch or use a plugin called UINav 3.0 (free), it will let you hook up custom FKeys to the Navigation IMC. if you need help with UINav i can assist you I’m currently using it for my entire project and it works perfectly.