How to upload 4k Videos on Youtube?

I've been making some cycling videos of climbs with my Garmin Virb Ultra. To record I've been using as settings 4k 30FPS and when I share the video from the Virb Edit I select the maximum resolution. But on Youtube it only shows the video as 1080p, so is it pointless to record the video in 4k if Youtube would only recognize it as 1080p?

www.youtube.com/watch