Hello,
1- The text that you mentioned appearing on Hover is the Summary Text that is shown in certain Product styles. So, if you don’t want to show that you need to go to Dashboard > Theme Settings > Product archive > Product styles > Elements > there you can find the Hover content area > there you can select None to show nothing: https://snipboard.io/jd9lwy.jpg
2- That icon that you referenced appears dynamically for the Add to Cart button in almost every Product style available right now and there isn’t a separate option available to change that. It requires Customization and this is beyond our limitations and support policy scope. Hope you can understand our limitations.
Best Regards