On some sites, it stuggles to load the dark, so for several seconds the page is totally white, and we see the dark coming gradually from the top to the bottom.

5🌸 ⭐ 🌞

If in Google Docs, it inverts imaged no matter what settings you activate. Otherwise, works pretty well!

Great! It works very well, but i don't like it when it try to up sell me

A lot of people are either 1 or 5 star reviewers. I think one star is quite harsh.
I'm not impressed with this extension and was surprised it was a recommended one. I agree it isn't very intuitive to use but even worse it that it slows my browser down immediately to the point of being unusable. Google e-mail will not even open.
It would appear however this is a recent issue.

the least intuitive garbage I have ever seen in a dark mode app.