I periodically check on LibreOffice to see if it's usable and typically I don't last more than a minute or two without hitting a major show-stopper. Last time I tried LibreOffice Writer, the text didn't render until after I stopped typing. The time before that, LibreOffice Calc took 3 seconds to begin editing any cell.

It's a common problem with Open Source: who does the slog work of testing, tracking down, and fixing the simple bugs and perf issues? Evidently, LibreOffice doesn't have enough maintainer cycles to have good coverage of common setups. It's unfortunate and as a developer I feel for them, but as a user it makes paying Microsoft an easy choice.