I use Arch Linux, and I installed the libreoffice-fresh package, because it’s the latest, and it didn’t load very fast, in fact it was very slow, so I naturally uninstalled the libreoffice-fresh package and installed the libreoffice-still package, because it’s more stable. While I do get better loading times than libreoffice 5, it’s still VERY slow, and I have the systray quick starter enabled, it doesn’t help. I am using Plasma 5 desktop. here is a post from two ears ago:
Look at the second reply, I turned off the network, and Libreoffice opens up blazing fast. I connect it back again, super slow start.
So clearly, libreoffice is uploading something, maybe anonymous user stats?