Yes, So Many Android and ios user was a received new update for youtube and the new feature is edge-to-edge thumbnails 
After experimenting with full-width thumbnails in some sections of its Android app earlier this month, YouTube has finally started to roll out the new design feature more widely. First spotted by 9to5Google, the new design can now be found on the Home feed, the Trending tab, and the Subscriptions feed, as can be seen below.
This is a really interesting feature add on youtube app really massive
