Computer Configuration > Administrative Templates > Microsoft Edge > Proxy server
Both
HKLM\Software\Policies\Microsoft\Edge
DEPRECATED: This policy is deprecated. It is currently supported but will become obsolete in a future release. This policy is deprecated, use 'ProxySettings' (Proxy settings) instead. It won't work in Microsoft Edge version 91. Defines a list of hosts for which Microsoft Edge bypasses any proxy. This policy is applied only if the 'ProxySettings' policy isn't specified and you have selected either fixed_servers or pac_script in the 'ProxyMode' (Configure proxy server settings) policy. If you selected any other mode for configuring proxy policies, don't enable or configure this policy. If you enable this policy, you can create a list of hosts for which Microsoft Edge doesn't use a proxy. If you don't configure this policy, no list of hosts is created for which Microsoft Edge bypasses a proxy. Leave this policy unconfigured if you've specified any other method for setting proxy policies. For more detailed examples go to https://go.microsoft.com/fwlink/?linkid=2094936. Example value: https://www.contoso.com, https://www.fabrikam.com