Does your Google Chrome show as being MANAGED?
My wife uses Google Chrome on a Windows 11 computer... she is an individual user and our only 'network' is a file sharing link through our Xfinity modem
In spite of being a standalone computer Chrome was showing MANAGED when she would try to delete cookies that she didn't want
I did a search and found out how to fix the problem
1 - log in using Safe Mode (which has admin level settings)
2 - start regedit
3 - delete HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome
Now Chrome allows her to go to chrome://settings/content/all and delete unwanted cookies

