Security Baseline Profile – Internet Explorer Settings

The IE policies would still affect Edge if the website is running in IE mode, as well as any apps you have that might be using the WebBrowser Control which is also based on IE

Another area which I am pretty sure where they are used by Edge more directly is for Security Zones which are still used in Edge for some specific scenarios. There is a good blog post here that talks about it - https://textslashplain.com/2020/01/30/security-zones-in-edge/

I finished working on a Policy refresh for 24H2 for my environment. I decided to implement the Internet Explorer Baseline Policies as per the template as a precaution, but also use the Edge Policies to Disable IE mode (since fortunately we dont have any sites that require it in our environment)