Cookie v6.8.4
MacOS 12.6.1

Although I've been to several websites that set cookies, I'm only shown one cookie in the app.

If I then close Safari (cookie removes all data), a local store remains.

I'll bring this post up again.
In the overview of Cookie caches are not shown to me. I seem to remember that this used to be different. I can be wrong of course. See first picture in my first post.

Then when I close Safari, Cookie is supposed to delete all data, which it doesn't do. Local storage is preserved, which I can see in Safari's overview under "Manage site data". See 2nd image in my first post.

I will monitor it and give feedback. Occurs only sporadically.