For this, I've recently discovered the Chrome extension SponsorBlock[1], which relies on user-submitted segments to auto-skip all kinds of off-topic segments in the video. You can choose to keep, skip, or mute segments like intros, sponsor promo, subscription reminders, and more. This metadata is not available on every single video, but in my experience it has made a huge difference in the amount of ads and repetitive reminders I see. Many videos get segment updates very quickly.
[1] https://chrome.google.com/webstore/detail/sponsorblock-for-y...