General
Specifies the general settings for LibreOffice.
Help
Specifies the behavior of the installed help.
Extended tips
Displays a help text when you rest the cursor on an icon, a menu command, or a control on a dialog.
Open/Save dialogs
Use LibreOffice dialogs
Specifies whether LibreOffice dialogs are used to open and save documents. Otherwise the dialogs of the operating system are used.

When you open a file by an URL from the Windows file dialog, Windows will open a local copy of the file, located in the Internet Explorer cache. The LibreOffice file dialog opens the remote file.
The LibreOffice dialogs for opening and saving documents are described in LibreOffice Help.
Document status
Printing sets "document modified" status
Specifies whether the printing of the document counts as a modification. When this option is marked, the very next time the document is closed you are asked if the changes should be saved. The print date is then entered in the document properties as a change.
Year (two digits)
Defines a date range, within which the system recognizes a two-digit year.
In LibreOffice, years are indicated by four digits, so that the difference between 1/1/99 and 1/1/01 is two years. This Year (two digits) setting allows the user to define the years in which two-digit dates are added to 2000. To illustrate, if you specify a date of 1/1/30 or later, the entry "1/1/20" is recognized as 1/1/2020 instead of 1/1/1920.
Help Improve LibreOffice
Collect usage data and send it to The Document Foundation
Send usage data to help The Document Foundation improve the software usability. The software development team is interested in information about the usage pattern of LibreOffice. This data helps to improve the usability of the applications, by identifying the most frequently used sequences of commands while performing common tasks, and in return, design a user interface that is easier to use and more productive. The usage data is sent anonymously and carry no document contents, only the commands used.