I still find it quite sad that the pinnacle of GUI programming tools was reached over 20 years ago, when Delphi 6 was released, and we've been going more or less downhill ever since.
(Real questions, Lazarus was before my time)
Guess what happened around that time?
Firstly, the web won.
Secondly, mobile cemented the demise of the desktop.
Especially since mobile is horribly anti-crossplatform GUI toolkit, especially against open source toolkits.