mate-applets binary package in Ubuntu Focal amd64

 accessx-status: indicates keyboard accessibility settings, including
 the current state of the keyboard, if those features are in use.
 .
 Battstat: monitors the power subsystem on a laptop.
 .
 Character palette: provides a convenient way to access non-standard
 characters, such as accented characters, mathematical symbols, special
 symbols, and punctuation marks.
 .
 MATE CPUFreq Applet: CPU frequency scaling monitor
 .
 Drivemount: lets you mount and unmount drives and file systems.
 .
 Geyes: pair of eyes which follow the mouse pointer around the screen.
 .
 Keyboard layout switcher: lets you assign different keyboard
 layouts for different locales.
 .
 Netspeed: network traffic monitor applet.
 .
 System monitor: CPU, memory, network, swap file and resource.
 .
 Trash: lets you drag items to the trash folder.
 .
 Weather report: downloads weather information from the U.S National Weather
 Service (NWS) servers, including the Interactive Weather Information
 Network (IWIN).

Source package