When I move the mouse cursor over the button on the image
Hey,
I think what you're trying to do is not possible in Power apps since Power apps can only change things if an action happened (Button click, Input, Focus switch,...)
Hover does not qualify as an action. You could Change the color of the button you're Hovering over or display a tooltip, but there is no way to change other components by hovering over a Button.
If my answer Helped you please accept it as solution so that others can find it aswell.
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