Also here to drop my two cents.
The setting to make thumbnails smaller exists but they're still larger than they were before.
The cropping is pretty awful, and even when disabled the borders still irritate me because they look like they're part of the pic.
And these two settings are not saved between sessions, unlike all the other user settings.
It also looks bad on mobile, arguably even worse than on PC.
I get the idea behind the update but I don't think it's ever applicable. I hope it's reversed soon.