Are you certain you actually created a login with an email and password? You may have previously been playing through Meta without a login account. If that was the case, you'll need to first create a login linked to an email and password from your Meta headset to then be able to use the account on steam.
#Can’t log in
earnest dagger
novel warren
Yes I'm very certain because my meta email is a different email from the email I've recieved vegas infinite emails from