There are at least ways to get the ads down to a manageable level in the mobile app.

If i notice a 15 sec ad before the video starts I just restart it and hope for a shorter one.

If there is two ads at the start of the video, you can close the video and relaunch it after the first ad is finished to skip the second one.

If the video has midroll ads you can scroll the video to the end and press restart from the beginning. That will remove the midroll ads.