If you specify whether you mean "no phone number," "no email," or "no reaction click at all," I can help narrow down options further.
It sounds like you're looking for a PUBG (PlayerUnknown's Battlegrounds) Discord server that doesn't require phone verification or email activation to join or participate.
Most larger, official, or community-run PUBG Discord servers do require some form of verification (typically a phone number or reaction-role verification) to prevent spam, bots, and raids. Completely "no activation required" servers are rare and often either very small, private, or potentially unsafe (e.g., scam or malware links).