It should work

I believe it’s only through the log

Initial log confirms its issue with your SMTP configuration, this happens sometime if your organization uses a proxy server. Try to update the port number with proxy port number. You can check that within your network teams

Are you using front end code or backend ode to achieve this. This happens because either the data processing at front end is very heavy with multiple processing request or your front end code is too heavy. May be try this approach with sever Side rendering instead client side

Take a look at this document  https://khakiout.wordpress.com/2016/02/23/aem-clientlibs-difference-between-dependencies-and-embed/

If you know what property you are looking for in side all the child pages, then make an aem query with that property, which will return all nodes within the root node and you can read those properties in root page sling model  

Please check log if you get detailed information on this. You can find this document helpful in checking the log and debugging. https://experienceleague.adobe.com/docs/experience-manager-desktop-app/using/troubleshoot.html%3Flang%3DenMay be you need to upgrade S3 or azure connector to latest version...

Is https://assets.ourcompanynamehere.com/ not working for you on desktop app ?

if you are connecting to local AEM server i assume you have already started your AEM server on you local. if you haven't made any change in default configuration it will listen to port 4502, so default aem_server value will be localhost and port will be 4502. if you are still not sure then just star...

Yes you can use any value even "" as default value with the <title jcr:primaryType="nt:unstructured" sling:resourceType="granite/ui/components/coral/foundation/form/textfield" fieldLabel="Title" name="./title" value=""/>   https://developer.adobe.com/experience-manager/reference-...