Main Menu
The Main Menu accesses a more verbose array of features and settings within VRChat. Double-clicking some of the tabs on the Quick Menu, or clicking the expansion button on the Quick Menu will open the Main Menu. There are currently thirteen different tabs for the Main Menu. You can also open or close the Wings on either side for more information at a glance.
Launch Pad
The Launch Pad on the Main Menu contains the Launch Pad banner from the Quick Menu, and an overview of the amount of friends who are online, any pending invites and friend requests in your notifications. There are also lists for "Recently Visited Online Friends", "Recently Visited Worlds", "Recently Updated Favorite Worlds", "Recently Updated Favorite Avatars", as well as a list of users who are not yet on your friend list that you may have recently interacted with.
Notification
An overview of any of all notifications that you have received. There are also sorted tabs specifically for Friend Requests, Invite, Invite Requests, Replies for invites sent out, Group notifications, and "Other" such as system notifications or pending votekicks in your instance.
There is also a tab for "Edit Messages" where you can customize your list of replies to invites, whether someone wants to join you, or if someone invites you to their instance.
Profile
The Profile menu, also introduced as the {{{1}}} Identity Update, includes a biography, spoken or signed languages a user communicates with, additional external URLs, any badges, a represented group which expands into a list of any group they publicly join, as well is current world and instance (if online or applicable). Scrolling down, you can see any worlds the user has uploaded (if applicable), or their lists of favorite worlds, if displayed publicly. On your profile, there is an extra list of avatars that you have uploaded, if applicable.
Worlds
My Worlds: Uploaded, Recently Visited, Updated Favorites, Favorite List 1, Favorite List 2, Favorite List 3, Favorite List 4 (VRChat Plus); VRCat's Variety Box, Trending, Avatar Worlds Trending, Games - Active, New & Noteworthy, Spotlight Cross Platform, Spotlight PC, Popular, New, Updated Recently, Avatar Worlds - New, Community Labs, Random, Avatar Worlds - Random