>>9489985That isn't the case. Let's say if you are watching a review of a new phone and such. The algorithm will likely put forth ads about new techs because it believes people who are interested in the topic of the video will be interested in sth similar. Furthermore, it will take into account your IP footprints as well.
That's why you see NijiEN ads in Hololive streams. At most, you can argue that Nijisanji should request Youtube to stop putting ads on Holomem's streams but then again, /vt/ doesn't reflect the general public reception of the agencies' relationship. They are on still good terms.