A saved view is a named filter you can return to instantly — for example, “Unread from work” or “Flagged in the last 7 days.”
Open the View Manager from the View menu or the command palette. Create a view by choosing a folder (or All Inboxes), a message filter, and optionally a date limit. Assign a hotkey to jump to it directly.
Press the assigned hotkey from anywhere in the main window to switch to that view immediately.