Enable Site Isolation for specified origins

If the policy is enabled, each of the named origins in a
comma-separated list will run in its own process. This will also isolate
origins named by subdomains; e.g. specifying https://example.com/ will
also cause https://foo.example.com/ to be isolated as part of the
https://example.com/ site.
If the policy is not configured or disabled, the user will be able to change this setting.

NOTE: This policy does not apply on Android. To enable IsolateOrigins on Android, use the IsolateOriginsAndroid policy setting.

Example value: https://example.com/,https://othersite.org/

Enable Site Isolation for specified origins

Registry Hive	HKEY_CURRENT_USER
Registry Path	Software\Policies\Google\ChromeOS
Value Name	IsolateOrigins
Value Type	REG_SZ
Default Value