The path has changed in some windows 11 build.
I had to do navigate to HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{e88865ea-0e1c-4e20-9aa6-edcd0212c87c} in regedit
then right click delete.
command wise, you should be able to run
reg delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace{e88865ea-0e1c-4e20-9aa6-edcd0212c87c}