Not effective against modern tracking methods

As others have noted, it unfortunately blocks embedded YouTube videos; including watching your own phone videos in Google Photos. Otherwise great extension, just currently unusable for me.

Works well most of the time. Blocks Instagram videos from loading.

Blocks embedded youtube videos. Definitely interested in this, but the extension needs a workaround for these embedded videos.

It's good, but I have no idea what it does.

its good, but chrome shows error also vivaldi but not brave on downloading from https://github.com/cowlicks/privacypossum why?

It would be necessary to give a little more explanation !
A single phrase lapidary, it does not serve much !

Fortunately there is the GitHub repository, better provided in explanation.
I invite to read it :

https://github.com/cowlicks/privacypossum#current-features

It works and does what is written in its description.