Since our problem apparently happened around the same date, I believe my WiFi problem might be related. I prepared USB sticks with Fedora KDE 30 and Fedora Workstation 31 Beta (Download date: October 19 2019). Both resulted in WiFi problems. The adapter (TP-Link TL-WN822N) led keeps off. The SSIDs are listed but it doesn’t connect. It works fine in another system. A little tricky, isn’t it? Thanks.