Switch display resolutions or adjust your screen brightness and colors (time-based) from the menu bar.
Check out these Mac Menu Bar Display Apps:
Hides
Enable focus mode, to quickly hide all apps except the app you’re currently working in. This menu bar app can be configured globally or for specific apps.
HideMyDock
By default you can only hide the dock for all virtual desktops (spaces). This menu bar app allows you to turn the dock off or on for certain virtual desktops.
BetterDummy
The new Apple Silicon Macs notoriously don’t allow sub-4K resolution displays to have HiDPI (“Retina”) resolutions. This menu bar app tricks macOS into thinking you’ve plugged in a 5K monitor.
TopNotch
TopNotch hides the notch by making your menu bar black. It’s only cosmetic and doesn’t take away any screen real estate. The app can also be used on any non-notch Mac to make the menu bar black.