I only started when a 1:00 video had 0:30 unskippable ads at the beginning and another 0:30 at the end. If the ad is more than the video why bother watching the ads.
I've also had moments were I wanted to see 1 specific point for a couple seconds, but just have to watch unskippable ads before I can scroll to the part I wanted to check (like a tutorial part).
I only started when a 1:00 video had 0:30 unskippable ads at the beginning and another 0:30 at the end. If the ad is more than the video why bother watching the ads.
I've also had moments were I wanted to see 1 specific point for a couple seconds, but just have to watch unskippable ads before I can scroll to the part I wanted to check (like a tutorial part).