YouTube now requires signed-in users to turn on their watch history if they want recommendations. The change has already started rolling out and will reach all users in the next few months. Your ...

To completely reset YouTube homepage recommendations, clear your watch history, pause history tracking, and remove likes, comments, and interactions. Use Not Interested and Don’t Recommend Channel ...

After installation, go to YouTube. The grid layout will automatically adjust based on the settings configured in the popup. You can change the video width at any time from the popup.