Menus
VRChat makes use of several menu types that can be used to interact with different aspects of the platform. Most notably the Quick Menu, the Main Menu and the Action Menu. While these menus do serve distinct purposes and offer exclusive features, they often share the same functions and settings, merely presented in different formats better suited for different contexts.
Quick Menu
See also Quick Menu for more detailed information.
The Quick Menu contains options and actions a user may want to interact with often. The features found in the Quick Menu are generally a condensed version of their counterparts in the Main Menu, with a few exceptions. Some examples of features exclusive to the Quick Menu are a button to visit your Home World, a button to respawn, the Here tab, and more.
The Quick Menu may colloquially be referred to as the "Small" or "Square" menu by VRChat users. By default it is opened on PC using the Escape key, on VR by pressing B / Y (top thumb button on either hand), and on gamepads and mobile by pressing the Menu button.
Main Menu
See also Main Menu for more detailed information.
The Main Menu can be revealed by 'expanding' the Quick Menu. It offers a more robust collection of tabs with in-depth information about VRChat systems like Worlds, Avatars, Groups, etc. Some examples of features exclusive to the Main Menu are browsing worlds, a full suite of settings, searching for users and content, and more.
The Main Menu may colloquially be referred to as the "Big Menu" by VRChat users.
Action Menu
See also Action Menu for more detailed information.
The Action Menu houses a variety of actions generally intended to be quickly used during social interaction. Options present themselves as segments in circular, nested menus, selected by inputting a flick in the direction of the segment you wish to interact with. The Action Menu is primarily used for activating features built in to avatars such as emotes within the Expressions category, however it also features categories for sending Emoji, toggling basic tools like the Personal Mirror, and an Options category for various settings.
The Action Menu may colloquially be referred to as the "Radial" or "Circle" menu by VRChat users. By default it is opened on PC using the R key, on VR by pressing and holding B / Y (top thumb buttons), on gamepads by pressing the Right Thumbstick, and on mobile by pressing and holding the Menu button.
Settings
See also Settings for more detailed information.
Settings are preferences to customize your VRChat experience. Menus for settings can be found in the Quick Menu, Main Menu, and Action Menu. They cover preferences for UI Elements, User Interface, Avatars, Your Avatar, Avatar Culling, Chatboxes, Display and Visual Adjustments, Comfort & Safety, and Audio & Voice, Graphics, Mirrors, Controls, Tracking & IK, Accessibility, and Debugging.
The Main Menu and Quick Menu tab for Settings is identified by a 
cog icon. The Settings tab in the Action Menu is identified as "Options", which can be accessed upwards on the wheel.
Camera
See also Camera for more detailed information.
The Camera is used to take pictures within VRChat. It can be accessed through the Quick Menu, or the Tools tab of the Action Menu. You can enable your camera in compatible modes, such as the Photo Camera, Screenshots, or Multi-Layered; also capture Icon, and Gallery photos, and also access Prints within the client, or on the VRChat website if subscribed to VRChat+. Desktop and PCVR users will have access to a Open Photos Folder button in the Camera tab, and can browse their snapshots on their computer. To quickly open the camera, you can double-click the Camera icon instead of only once.
Debug Menus
See also Debug Menus for more detailed information.
These are tools to help debug worlds, avatars, and OSC in-game. In order to see these, VRChat needs to be launched using the launch parameter --enable-debug-gui. There are 9 different debug views to help creators fix errors or to test optimizations applied and their impact.
