PayPal has finally got with the times and now supports normal 2FA, no more tricks required! Check out https://benbrian.net/authenticator-app-support-in-paypal-finally/ for how to set it up. I highly recommend doing it that way instead of my old way here. I can confirm it even works with the mobile apps.
This is just a hosted version of the open source vipaccess tool, since it can be a pain to set up.
Since this is all about security, you should run it yourself if you don't trust me, but I promise I'm not storing anything. You can check out my code here.
Check out my guide on setting up PayPal with 2FA if you have no idea what's going on here.
You can enter anything here, it's just what gets displayed in your TOTP app. I'd recommend using your paypal email address and "PayPal".