I thought it was a bug, but then I realised this is a thing youtube are doing and it's fucking awful.
Edit: double checked and because they moved the layout the Unhook extension isn't working properly anymore to hide this obnoxious crap :(
Edit 2: That's hilarious, they seem to have borked the whole site at least for me with this change.
Yea, looks like cancer. Recommended is now a giant grid with huge thumbnails and the video description and comments are in a tiny sidebar.
I guess the diversity UI designers had to justify their existence again and came up with this shit.
So many websites are following the same retarded trend and boy do I fucking hate it, dumb it down so much it's like a fucking picture book instead of a functional website.