I learned a few things from this post. Is the IP truncation happening at a certain octet? I’d be interested to read more of that. I’m searching on mobile, so hard to find (I hit a 404 and some forum posts)
"A public resolver user’s IP address (referred to as the client or source IP address) will not be stored in non-volatile storage. Cloudflare will anonymize source IP addresses via IP truncation methods (last octet for IPv4 and last 80 bits for IPv6). Cloudflare will delete the truncated IP address within 25 hours."