Dull color in Illustrator in RGB mode

Hey, 

I've been scrolling trough all the topics about dull color in Illustrator here. Can't find a solution that worked out for me. Everytime I drag and drop a screenshot, the color is dull.

Even if I copy/paste from an illustrator file to another, the color change.

I am in Illustrator 2022, MacOS Monterey v.12,4. (Heard that problem was under Ventura but i'm not)

> I went to Bridge > Edit > Color Settings > Apply. Didn't do anything.
(Is that because I'm working trough files in iCloud ?)

> I reset all my color settings in Illustrator

> I work on a RGB file
> I went to Select > Change colors > Convert to RGB when that was possible, but didn't do anything.

> I try to save / close / reopen my file a hundred times

(I will put a screenshot, on left screen is my Illustrator file, at the right is the website I need to screenshot.)

Did someone can help me or redirect me to a topic with answers to that problem that I haven't seen maybe ?

Thanks a lot !