Earlier quoted context omitted.
You’ll be back. LibreOffice is so visually gross it’s pretty hard to use.
LibreOffice should have provided a theme/icon pack "Office Icons" - half the time I can't tell what an icon is for because most of us have been raised on MS Office. Also, it would do well with a "Simple" mode ala Google Docs that is sufficient most of the time for most folks. Otherwise it works fine, haven't had any issues with the documents it produces and I particularly like the direct export to pdf feature.
Select TOOLS > OPTIONS > ADVANCED > Enable experimental Options (WARNING this is experimental and may be unstable) > OK and then RESTART LIBREOFFICE. On restart VIEW > TOOLBAR LAYOUT > NOTEBOOKBAR. You can then play with the options with VIEW > NOTEBOOKBAR > CONTEXTUAL GROUPS/ CONTEXTUAL SINGLE / TABBED.