You can select the container with class .gb-element-ff8c003b, click the manage selector button, and select the Hovered link option, then you can change the hovered link color in the typography panel: https://app.screencast.com/D9uZobVL1kCUC
For the social icons, you can select each of the buttons, click the manage selector button, and select hovered icon option. https://app.screencast.com/4ctMeRryjIskT