Add &ytp-pause-overlay=0 to the end of your YouTube video URL. The ytp-pause-overlay=0 is what removes the overlay with suggested videos when you pause an embedded YT video.
Also, you should know that ? is the first part that gets added to the URL. Any additional command you give it will start with &.
For example:
https://youtu.be/ABC123abc?modestbranding=1&rel=0&ytp-pause-overlay=0
Some other codes you may find useful:
- modestbranding=1 turns off the YouTube branding
- https://youtu.be/ABC123abc?modestbranding=1
- rel=0 turns off related videos at the end of the video
- https://youtu.be/ABC123abc?rel=0
- controls=0 removes the play/pause bar
- https://youtu.be/ABC123abc?controls=0
- showinfo=0 removes the top bar of the video
- https://youtu.be/ABC123abc?showinfo=0
- loop=1&playlist=ABC123abc will loop the video. Note: you need to add the video ID again to the URL.
- https://youtu.be/ABC123abc?loop=1&playlist=ABC123abc
