yes! you can choose a frame from your Short to be used as the thumbnail on iOS and Android devices. instructions on how to do this here: https://t.co/vldjvcfLz3
This way, the custom frame you designed becomes the thumbnail when you upload the Short.
2. After uploading
If you’ve already uploaded a Shorts and want to change its thumbnail, it’s too late — sorry.YouTube doesn’t let you change the thumbnail after upload.
Though, they might be working on it — check this out:
super open to your feedback on this!! feel free to drop all your ideas in our Send Feedback tool ➡️ https://t.co/BNmW59hY33 you can also check this article for more deets on thumbnails: https://t.co/w4j36t6Lo9
David is the head of the editing team at ThumbnailTest. With his help, the editorial team is able to provide you with the best free guides related to YouTube thumbnails and A/B testing.