https://en.m.wikipedia.org/wiki/Qt_(software)#Applications_u...

Some notable programs:

Adobe Photoshop Album, Adobe Photoshop Elements, AMD's driver tool, CryEngine, Autodesk Maya, Google Earth, Mathematica, Opera, OBS, Skype, Teamviewer, Telegram, VLC media player, Wireshark, QtCreator, Qbittorrent, Nuke, Xnview