YouTube Shorts creators can now select a still image frame from their video to use as a thumbnail on their iOS device. A feature coming in the upcoming weeks to everyone.
YouTube Shorts Thumbnail
Although YouTube Shorts creators have always had the option to select a thumbnail during the in-app upload process, this new approach makes it possible during the in-app upload process, which may prove to be more convenient.
YouTube has made great improvements to YouTube Shorts. Earlier this month, they introduced new metrics and just before that, they made an in-stream video comment reply feature possible.