The latest Insider build breaks Language Input Method applications (like Unikey)

[ylazy]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: VSCode 1.96.4; VSCode Insider 1.97.0
• OS Version: Windows 11 24H2

Steps to Reproduce:

My Input Method application works fine with VSCode Stable 1.96.4, but not working properly with VSCode Insider 1.97.0.
Please view the videos bellow to see what happened:

With VSCode Stable 1.96.4:

Code.mp4

With VSCode Insider 1.97.0:

Code.Insider.mp4

Maybe related: #239301

Thanks!