Try  deny on  */*.infinity.json*/*

Add the js in author clientlibrary .Ref : https://sourcedcode.com/blog/aem/adding-custom-client-library-for-aem-author-editor-touch-ui 

Not sure for config specifically , may be you can raise a support ticket with this request. ThanksHimanshu

Use query builder api to fetch all assets with tags under the folder. Ref: https://experienceleague.adobe.com/docs/experience-manager-65/assets/JCR_query_cheatsheet-v1.1.pdf?lang=en 

Check  Apache Sling Referrer Filter configurationRef: https://sourcedcode.com/blog/aem/in-aem-what-is-the-apache-sling-referrer-filter-osgi-configuration 

Hi ,Kindly refer the link https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/operations/indexing.html?lang=enfor creating custom index in AEMAACS. ThanksHimanshu

Add you custom workflow as post processing workflow .Refer: https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/assets/manage/asset-microservices-configure-and-use.html?lang=en#supported-file-formats ThanksHimanshu

In that case you use CUG and assign those users who need access for these 2 resources .So whenever they try to access they need to authenticate . https://experienceleague.adobe.com/docs/experience-manager-65/administering/security/cug.html?lang=en 

Refer: https://experienceleague.adobe.com/docs/experience-manager-learn/getting-started-with-aem-headless/authentication/overview.html?lang=en 

Hi @Fernanda_M_Motta this is for assets only . For page properties kindly refer https://experienceleague.adobe.com/docs/experience-manager-65/developing/extending-aem/bulk-editing.html?lang=en