No, it's an feature that's only available to partner channels. And it's really irritating too, in the beginning years of YT, there was always fixed positions for the pre-generated thumbnails of standard channels: the 1/4 mark, the halfway mark, and the 3/4 mark, rather than just randomizing the three thumbnails, but it's like they pick the most awful points in the timeline to extract thumbnails from, I rarely am happy with the thumbnails to choose from.
And I STILL have NOT given Google my number, nor am I ever going to. I might as well give my banking information to the Fuhrer.