Computer Configuration > Administrative Templates > Google Chrome
Both
HKLM\Software\Policies\Google\Chrome
This policy controls the visibility of the Chrome history page organized into groups of pages. If the policy is set to Enabled, a Chrome history page organized into groups will be visible at chrome://history/grouped. If the policy is set to Disabled, a Chrome history page organized into groups will not be visible at chrome://history/grouped. If the policy is left unset, a Chrome history page organized into groups will be visible at chrome://history/grouped by default. Please note, if ComponentUpdatesEnabled policy is set to Disabled, but HistoryClustersVisible is set to Enabled or unset, a Chrome history page organized into groups will still be available at chrome://history/grouped, but may be less relevant to the user.