As in, would the channel be losing out on money? Because I don’t want to take away from small creators if there is a retention rate for viewership of that exact segment, but I would prefer to skip any of the “but first check out this shitty mobile game”.
If you mean the ads that are actually part of video where the YouTuber is just reading the ad themselves, I don’t think it makes a big difference. It might impact their metrics a little since you’re fast forwarding part of the video but that’s it