Trying to add device to NNS that’s non smartphone

I’m trying to hook up my Internet account to my laptop, but the only way I can access it by using my Face ID on my phone to bypass security. When I go to security key, it is telling me to insert my security key with a USB port. I’ve only ever use a USB on my phone so I’ve never used a USB with my wallet. I had written down by 24 words seed phrase as I thought that was the security key. Am I missing something?