Does the couple need to meet first in real before they can apply for MVV?
Hi and welcome to the Forum.
MVV is an individual entry visa and work permit; your personal status is irrelevant to your application; your application will stand or fall on its own merit.
If your application is linked to a relationship, then part of the process is to prove you are in a “long-term and exclusive relationship”; if you’ve never met, I suspect this will be impossible to prove.
Hope this helps.