I like the idea of this (and it's been in stable for over a month) but in practice I never use it. It leaves way too many things in.

One easy example is discord images. Go to discord, find an image you or someone else posted, and open it in firefox. After the extension they add a bunch of extra stuff on. Firefox will leave it all on even if you select "Copy without site tracking", while you can easily just manually copy up to the extension and no further.

I get that they have to strike a balance between removing parts of the link and preserving functionality, and that they can't always know what extra data in the link is being used for - but I think that just means this is something that'll always be better done manually.