DeArrow is another extension if you'd like to use it. It's by the same guy who made SponsorBlock by automatically changing thumbnails and titles of clickbait-like videos to what the topic is about.
GBAtemp.net - The Independent Video Game Community
SylverReZ
x65943
I was wondering how such a thing might work, and discovered it's crowd sourced
That's great
That's great
SylverReZ
All of the segments are crowd sourced so you can make segments to remove filler tangents, sponsors, intros and others. All of these things are injected into the client-side of YouTube.