The creators of SponsorBlock did it again, now we can crowdsource better titles and thumbnails as well. I just tried it with LinusTechTips who is a worst offender when it comes to clickbait and its really great.
Compare without DeArrow
and with the extension
There is also Clickbait Remover for Youtube. What are diferences?
This one will additionally use user submitted titles and thumbnails when available instead of just random ones.