That does not sound plausible at all, wipr is an adblocker. No adblocker should be causing this. If it's spoofing your JS fingerprint and Meta uses that for suggesting accounts, wow would that be ridiculous.
My guess (pure speculation) is that Wipr sets the fingerprint to a well-known value for privacy / anonymization reasons, and Meta is indeed using that to suggest related accounts.
Wasn't something I expected -- seems to be related to having Wipr Extra enabled. Emailed the dev about it and will share if I hear anything back. For now I have it uninstalled and have not experienced this since. Recorded a video of enabling Wipr Extra and the auth page refreshing to show three random people, might be a pain to redact it but I can try to if people really don't believe me.