I’m also impressed from Objo Studio so far.
But there is an issue in Avalonia UI on macOS, that i was not aware of. If you use the modern metal Rendering-Mode, then the GUI will stretch and jitter while resizing a window, see here.
Only way so far is to use deprecated OpenGL Mode or Software Rendering mode. Which mode does Objo Studio use?
I really hope Avalonia can figure this out. Google Chrome also uses Skia and does not show this behaviour on macOS.