Here is a better picture the bottom is the controller. How do I fix this?

On the forums page go to "settings" (bottom right hand corner) and enter a URL for a picture you want to include (like mine below) in the "signature" section

Is there a way I can control the game with my mac keyboard instead of using my nintendo switch Joy Cons?

If there is, please let me know.

I apologize but the keyboard and mouse is currently not supported in cloud gaming. You can only play using your controller.

Hi and thanks for reaching out. I hope you’re doing well. I'm an Independent Advisor and a Microsoft user like you and I'll be happy to help you.

It sounds like you may be experiencing some issues with the controller mapping in Fortnite on your Mac. Here are a few things you can try to fix the problem:

1. Make sure that your Nintendo Switch Joy-Cons are properly paired with your Mac. You can do this by going to the Bluetooth settings on your Mac and checking to see if the Joy-Cons are listed as connected devices.

2. Try re-calibrating the Joy-Cons in the Fortnite settings. To do this, go to the "Controller" tab in the Fortnite settings menu and select "Calibrate Controller." Follow the on-screen instructions to calibrate the Joy-Cons.

3. If the Joy-Cons are still not working properly, you may need to update the controller firmware. You can do this by going to the Nintendo Switch system settings, selecting "Controllers and Sensors," and then selecting "Update Controllers."

If none of these solutions work, you may need to try using a different controller, or you may need to reach out to Nintendo or Epic Games (the developer of Fortnite) for further assistance.

2nd link appears to be finished. Your first link regarding the 'metal circle with no x'...if no 'x' it's not legitimate. Perhaps confirm with the seller? can a better picture be provided if the home button is hidden from the flash.

Also to note that the controller port (bottom input of the controller) appears to be of the first generation, with no headphone jack. That's an old controller that's been sitting around for the past several years to be 'unused'; something for you to consider,
should that matter to you.

Good luck