Thank you for the long reply. I really appreciate it.

Winform and desktop application may be last remaining market of .NET in China. The good news is that the market is huge. However, I don't see many WPF jobs in the recruiting websites.

LoongArch support of .NET doesn't bring much difference because the LoognArch CPU is NOT popular here and it's government supported project which is only applied in nation-owned companies. The market of this CPU is small compared with Arm-based CPU and x86 CPU.