Does Monitor Control support the Apple Studio and Dell U4320Q + U3219Q ?

[my10c]

With my Apple Intel MacBook Pro connected to a Dell Monitor U4329Q + a Dell U3219Q, I was able to control sound and contrast..
Now that i have switched to the new Apple Studio, I can only control Brightness... Volume and Contrast are greyed out ...
Next to the monitor in the Display tab : there is a triangle with a !

Using BetterDisplay and it works jus fine ... I just like Monitor Control better :-)

Any idea, advice ?

Thanks