It’s not a revert, merely A/B testing to see which version leads to more “engagement”.

They’re also testing the same on the web, half the time I get the normal sidebar, half the time I get a 300% zoomed one where I can only see like 3 video thumbnails before having to scroll (jokes on them, I don’t - but then again I block ads so I don’t count either way).

If it happens to me again, I will have to find my content elsewhere. It's not even a conscious decision, I just got genuinely fatigued from the experience.

On the bright side, maybe I'd be better off. There are probably better things I could be doing with my time.