Snooper

Snooper is a feature Mojang uses to collect data on users, either by the client or by the server. This feature was removed globally in 1.13 because of the European Union's General Data Protection Regulations. However, it was re-added as an always-on telemetry tool in Java Edition 1.18 snapshot 21w38a to "improve players' experience". It is no longer possible to disable the Snooper without client modifications.

GL Caps
OpenGL keys for the client.