I can’t seem to link to YouTube shorts in such a way that the link starts the video at a specific time, so you’ll just have to do it the old fashioned way and scroll (or wait) till :31 in this video.
It’s almost certainly elevator music or 70’s “on hold” music, and I’ve heard it a thousand times. Do we know where it originated?
This version of the Roku startup screen originally had music very similar to the OP’s melody. It was intended to closely resemble elevator music, and was a self-deprecating comment on the fact that the user was having to wait for the unit to boot up. The animation is also a commentary on the “waiting” theme, with each of the letters showing boredom (the R is looking around vaguely, the O is yawning, the K is tapping its foot, and the U is nodding off and then jerking awake). Before release, the music was replaced with another version which also resembles elevator music, but not as strongly as the original version. I liked the original better, and thought it was more to the point. With the released music, a lot of people didn’t get the joke and referred to the letters as “dancing” or something like that.
Can’t edit the previous post since it includes a video, but I wanted to be clear that this video shows the released, inferior version. There may have been some copyright issue with using the original music.