Like when the creator does their spiel for whatever sponsor.
40 points
You can download the entire SponsorBlock database (see https://sponsor.ajay.app/database and https://github.com/mchangrh/sb-mirror ), so it should be possible to calculate a reasonably accurate answer to OP’s question.
You’d need to estimate for the videos absent from the database, of course.
5 points
9 points
Invidious is supported according to the plugin description: https://addons.mozilla.org/en-US/firefox/addon/sponsorblock/
