Not a fan of the confusing QT license
> The Foundation has license agreements with The Qt Company, Digia and Nokia. The agreements ensure that the Qt will continue to be available as Free Software. Should The Qt Company discontinue the development of the Qt Free Edition under the required licenses, then the Foundation has the right to release Qt under a BSD-style license or under other open source licenses. The agreements stay valid in case of a buy-out, a merger or bankruptcy.
everything before the "Add-ons available under Commercial Licenses, or GNU General Public License v3" separator is available under LGPLv3, and that covers very likely 100% of what is used in KDE