How do I block ads?

I want to block ads on YouTube vidoes or other embedded content on my WordPress website. How do I do that?

I know I have done this before somehow but I can’t seem to figure it out. The plugins seem to want me to unblock AdBlock instead.

Thank you!

I am not sure this is even possible. How did you do this before? Are you referring to ads on your videos (which you can control) or someone else’s?

There was a way in the past to prevent the YouTube suggested videos at the ends (which are not technically adds) with the ?rel=0 parameter on the URL, but apparently that end around does not work.