There is an annoying behavior in LibreOffice: if the system language (English) differs from the writing language (Arabic), the font cannot easily be changed. A new extension by Mejlad Alsubaie, a developer from Kuwait, addresses this issue.
A collection of the best Arabic tools and apps for learners of Arabic: dictionaries, browser add-ons, audiobooks, streaming tools.
LibreOffice - unlike Microsoft Word - does not offer to change the color of Arabic diacritical marks (tashkeel/harakat). However, there are two tricks.
Arabic keyboards lack many important special characters. Here is a list of the most important characters and signs which you can copy and paste.
The word Allah is often written like a calligraphy - with the dagger Aleph. There are several ways to achieve that in Microsoft Word or Libre Office.
Times New Roman or Arial are not the only fonts to write in Arabic. Google Fonts offers many beautiful Arabic fonts for free - it works also for Apple/Mac.