bbqguy. Unlike rollfilm cameras where each camera has proprietary lenses, on LF cameras you can use lenses by a variety of makers, or from different eras of lens design. Google is your friend. Here's a piece by my friend & pro photographer Todd Korol, on choosing LF lenses... it's a good primer. & your observation is correct, package deal LF kits are the exception rather than the rule.
https://www.youtube.com/watch?v=mU5EpJB56tE&t=52s
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