Update: It's said the issue will be resolved in macOS Sonoma 14.2. You can delete this app after upgrading the system.
Made by Xiao
A button on macOS menu bar to kill the SCIM / SCIM_Extension (and TCIM / TCIM_Extension for Traditional Chinese IME) processes any time when you see a rainbow spinwheel on macOS and all UI get stuck.
Embeded Chinese IME on macOS sometimes just stuck the whole system UI for no reason. The only way to fix it right now is to kill the IME process(es).
Terminal apps could be unresponsive as well when the rainbow spinwheel appears, while menubar buttons are always responsive for interaction.
Download, unzip, and drag the app to Applications folder.