✅ WPF vs. Avalonia

Hey, so I've used WPF a bit before and now I am planning on starting a new project and was wondering should I be using WPF or Avalonia, or is it just up to personal preference? I know that Avalonia is designed to be cross-platform, but are there any other advantages or disadvantages compared to WPF? I tried googling but did not find really clear answers. Thanks in advance.