Right on for you! Unfortunately, that did not work for me or any one else.
rm -rf ~/Library/Application Support/Plex
rm -rf ~/Library/Saved Application State/tv.plex.desktop.savedState
rm -rf ~/Library/Logs/Plex
rm -rf ~/Library/Caches/Plex
rm -rf /System/Volumes/Data/Users/adam/Library/Application Support/Plex/plex.ini
Those are the commands that I ran and then launched Plex but still blank screen.
