Question on disabling XMLRPC and using Jetpack

All,

I have been having problems getting Jetpack Related posts to work with my hosting provider and my site, so I want to try to make sure I understand this whole issue about Jetpack and XMLRPC.

In JetPack,I use the following modules:
Related Posts, WordPress Stats, Subscriptions, Comments, Publicize

I had a developer add this code in my wp-config.php file a while back to protect my site against XMLRPC DOS attacks:

add_filter(‘xmlrpc_enabled’, ‘__return_false’);

Will this allow my Jetpack features listed above to still work?
Will this disable any other Jetpack features I should be aware of?

I read some of the threads in the forum, and some of the support information says that XMLRPC is required for Jetpack to work.

But there are also other threads that say disabling it using this “filter” will still let Jetpack work:

https://wordpress.org/support/topic/disabling-xml-rpc-may-damage-jetpack?replies=18

So, just trying to figure out what really needs to be set-up for Jetpack to work and if my issues are related to limits with my hosting provider or not.1

Thanks.

Michael

https://wordpress.org/plugins/jetpack/