Telegram channels and Discord servers that distribute "100% working free links" are usually data farms. They require you to complete a survey, install a mobile app, or share the link with 10 friends. You never get a working key—they just earn ad revenue from your clicks.
Websites promising an "adguard licence key free link" often ask you to download a "keygen.exe" or "patch.exe." These files are almost always: adguard licence key free link