Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/glib-2.0/schemas/org.gnome.desktop.calendar.gschema.xml

 <?xml version="1.0" encoding="UTF-8"?>
<schemalist gettext-domain="gsettings-desktop-schemas">
  <schema id="org.gnome.desktop.calendar" path="/org/gnome/desktop/calendar/">
    <key name="show-weekdate" type="b">
      <default>false</default>
      <summary>Show the week date in the calendar</summary>
      <description>If true, display the ISO week date in the calendar.</description>
    </key>
  </schema>
</schemalist>