Do I need Passkeys

Don't worry about appearing dumb, even in front of an audience of strangers. If you've made a decent effort to answer your own question, then please just ask, as you can be sure that you are not alone in wanting an answer to the question.

Since @1P_Dave has already pointed you to the resources you need in order to understand what passkeys are and how they are managed in 1Password so you can decide for yourself, I'll take your question literally and say that currently you do not need to use passkeys whether or not you use 1Password. That is to say that it's vanishingly unlikely that you will need access to a site or service which requires you use a passkey...
yet.
That's why now is the second best time to start using and getting comfortable with passkeys. Pick some non-critical (an not problematic) sites which you use, enable passkey identification and/or authentication, stay logged in, and test logging in using a Private or Incognito browser with the 1Password extension enabled.

Thanks Dave I appreciate your help and time!