Relative to libreoffice 6, to avoid being forced to see, use, and/or close the start center window simply don’t allow VC_redist.exe or VC_redist.x64.exe to install. The option is available toward the end of 6’s install process. If VC_redist… is installed then when any segment (Write, Calc, Draw, …) is opened the start center window is also opened, which then takes over precious screen real estate and can’t easily be closed, nor can the start center window be disabled, at least in standard settings options. Though an X (close) button is available in the upper right of segment windows, the start center window doesn’t have an X button, so customers are forced to close it via start center menus.
At least for me the start center window opens with a locked dimension that extends from the top to the bottom of the screen, and cannot be adjusted. Dimension/Size adjustments are available at right and left edges, but not top or bottom edges.
I presume the hype is correct about how well LO 6 functions, but forcing customers into using a start center window is depressingly similar to Microsoft’s invasive software perspectives which attempt to force their users to do things a “new” way, regardless of how experienced, intelligent, or organized we are.
Until I happened upon this solution I was preparing to perpetually avoid at least LibreOffice 6. I’ve been using LO versions because I can customize the interface and don’t have to try to work around or capitulate to Microsoft’s “vision.” I much prefer WordPerfect’s functions and features, but a groundswell of supporters for it is just not developing.