Greasy Fork is available in English.
AKA: "Wide Youtube", AKA: "Wide video container" - Uses the page space on youtube more efficiently (especially good for high resolutions)
< Feedback on Space-efficient Youtube
As far as I can tell only the home page has a different system. I personally pretty much only use the subscriptions page. That seems to still use the old system, so I hadn't noticed the change.
Updated. The new system YT uses is much harder to work around, but it should work alright now.
Due to how the new workaround works, you should remember to set the max number of videos you'd like to see per row via the Tampermonkey menu
please update this
please update this for the new YouTube layout.