Had the mouse cursor freeze on me a couple of times so I started keeping a journalctl terminal window easily available, and what I noticed is that the cursor freeze is correctable with the message:
wlp3s0: WPA: Group rekeying completed with 2c:55:d3:d8:28:e4 [GTK=CCMP]
I run Xfce on Fedora 28 and my WiFi card is a:
Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter
If there is any other information I could provide I'll gladly do that.