Been a user and supporter of Libre Office for several years on my desktop. Now have a Samsung A9+ tablet. Does Libre Office have an app to allow its use on the tablet?
LibreOffice for Android is for read only. Collabora Office (a big contributor to LibreOffice code) can be used to edit or create open document formats, see LibreOffice for Android and iOS | LibreOffice - Free and private office suite - Based on OpenOffice - Compatible with Microsoft