Inside C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Python 3.10 there remain several shortcut files. "IDLE (Python 3.10 64-bit)" with a target of [ C:\Python310\pythonw.exe ...
Unfortunately from that bug (and the repository in general), it would appear that pyreadline is no longer actively maintained (last update of any kind was in 2015), so for Hy to continue to support ...