Could you give some examples?

I noticed recently that some of my older accounts would have a higher quality of recommended content.

And then within a week or two of using them, it would be back to the same slop as my main account.

As far as I can tell this is because I click on what catches my attention. Whatever stands out. Which tends to be the most clickbaity thumbnails.

So I have to wonder if what you're actually fighting against is an algorithm, or the human limbic system...