Even more so when you look at stuff like WinForms - someone coming from VCL would see many familiar things.
Switched to c# instead of picking up vb.net - in retrospect a good call.
It sounds like you were maybe using it at a fairly surface level, for which VB was good because it was highly approachable sure, but the wheels fell off pretty quick when you had to push it. Delphi was beautiful because it made the easy stuff as easy as VB, but the hard stuff was still easy where in VB it was either impossible or required dropping down to Win32 APIs or calling other languages.
Sounds like you never used Delphi. Modern C sharp with whatever MS calls the GUI classes this week doesn't hold a candle to how fast you chouls whip up an UI in Delphi and then concentrate on actual functions.
Edit: talking about the Delphi before Microsoft offered Hejlsberg 1 million extra per year and Borland refused to match...
(Keep in mind tho that this is about WinForms specifically, and is less true of the frameworks that followed it. It's also about the original .NET Framework, not the present state of affairs with .NET Core, which required a new designer.)