On a lot of platforms, the algorithm categories views under quite a few different metrics. The one I found most interesting was small channels vs large channels. Some viewers prefer smaller, more “niche” channels. While others are more into the bigger brand mainstream names.

So, depending on the viewer's habits, certain channels are in fact not being shown unless the user goes out of their way to look for them. For instance, smaller channels start to show up at a higher frequency for a mainstream viewer once that viewer focuses in on a niche and has run out of mainstream content to consume. The more niche content they consume, the more smaller channels in other categories that view enjoys starts to show up as well.

As far as people doing calls of actions. It’s always going to be around as it works even if it’s annoying to see over and over again. As the average consumer of content needs to be reminded during their endless train-fueled binge of content to stop what the algorithm is pushing to them to do something other than have their brains rot out of their skulls 24/7.