Mixing Fortify and starter kit authentication

I'm fairly new to Laravel, I've worked on a fairly antiquated PHP and Vue2 codebase but my current project is using Laravel 12 and the Vue starter kit. I was hoping I would get by using the provided user authentication so I wouldn't have to go through the hassle of making my own. Now I want to add 2FA using Fortify. I've made a page where a user can confirm their password, generate the qr code, and confirm an OTP to enable 2FA, but I'm a bit stuck at the stage of requiring it when logging in.

Currently the auth flow is fully stock starter kit, I have a page to enter the OTP and I have set it as the twoFactorChallengeView, and I haven't changed the login POST route. I assume I can change the AuthenticatedSessionController.php to check for the 2FA and redirect to the challenge page but I feel I'm working against the intended flow of Fortify.

Is there a "proper" way to integrate just the 2FA part of Fortify into the starter kit auth?

Thanks.