Yes. Social scientists have already noted that happening. Once you have one fringe belief, you're more likely to adopt other ones as well.
Also, conspiracy mongers target minority religious communities because they are often more culturally isolated, allowing a wider spread of the ideas with more potential credulity. During the pandemic, COVID hit groups like Hasidic Jews or Pentecostals especially hard, they became filled with conspiracy theories about vaccines and masks.
I have noticed two Christian religious communities that are especially prone to conspiracy theories and extremism: Pentecostals and so-called Messianics. I believe it is because both are on the intellectual and/or cultural margins of society, and are more prone to idiosyncratic thinking.