> In some cases it's pushing recommendations for videos all similar to a recent video I had watched, but I'm no longer interested in that topic
If it has already showed you your organic recommendations multiple times before, it knows it needs to grab onto something new to try to get you to watching. Since you watched that recent video, that's the best chance it has of getting you to click anything since you've shown direct interest in it. You can click 'not interested' on these and it's pretty good at following that instruction, at least unless your next video is another video similar to it.
If it has already showed you your organic recommendations multiple times before, it knows it needs to grab onto something new to try to get you to watching. Since you watched that recent video, that's the best chance it has of getting you to click anything since you've shown direct interest in it. You can click 'not interested' on these and it's pretty good at following that instruction, at least unless your next video is another video similar to it.