I just bought my first Ubuntu laptop, a ThinkPad L13 Gen 4 / Intel Core i5 (13. Gen.) 1335U integrated GPU

So everything works fine and the display of the Laptop is very bad. Ok, not the best display, pale colors, bad contrast etc.
I'm getting on with it so far.

But I just can not use Color Profiles to get the Colors a little bit stronger.

So when I switch the Color Profiles e.g. Wide RGB or Adobe RGB or any other profile nothing changes visually (see Screenshot).

Is there any trick to get colour control?
It must be possible to change the colour and contrast rendering somehow, even if the built-in display is not the best?

Thank you for any idea!


PS: System Prefs: