Prevent Information Disclosure on Azure WebApp

I'm trying to resolve the Prevent Information Disclosure issue reported by Defender Security Tweaks, I can see that for apache there is a .htaccess but I'm running my wordpress instance on Azure WebApp which I think uses IIS but I don't understand what is the configuration that needs to be changed. I've removed all default documents other than index.php since if I don't use it, the site won't load.

Could you let me know how properly configure my webapp to avoid this issue?